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  • 1.
    Ahlford, Katrin
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Zaitsev, Alexey B.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Ekström, Jesper
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Adolfsson, Hans
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    A Simple and Efficient Catalyst System for the Asymmetric Transfer Hydrogenation of Ketones2007In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 16, p. 2541-2544Article in journal (Refereed)
  • 2.
    Ayesa, Susana
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Samuelsson, Bertil
    Classon, Björn
    A One-Pot, Solid-Phase Synthesis of Secondary Amines from Reactive Alkyl Halides and an Alkyl Azide2008In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 1, p. 77-79Article in journal (Refereed)
  • 3. Borah, Raju Kumar
    et al.
    Raul, Prasanta Kumar
    Mahanta, Abhijit
    Shchukarev, Andrey
    Umeå University, Faculty of Science and Technology, Department of Chemistry.
    Mikkola, Jyri-Pekka
    Umeå University, Faculty of Science and Technology, Department of Chemistry. Industrial Chemistry & Reaction Engineering, Åbo Akademi University, Åbo-Turku, Finland.
    Thakur, Ashim Jyoti
    Copper Oxide Nanoparticles as a Mild and Efficient Catalyst for N-Arylation of Imidazole and Aniline with Boronic Acids at Room Temperature2017In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 28, no 10, p. 1177-1182Article in journal (Refereed)
    Abstract [en]

    The present work describes the excellent catalytic activity of copper(II) oxide nanoparticles (NPs) towards N-arylation of aniline and imidazole at room temperature. The copper(II) oxide NPs were synthesized by a thermal refluxing technique and characterized by FT-IR spectroscopy; powder XRD, SEM, EDX, TEM, TGA, XPS, BET surface area analysis, and particle size analysis. The size of the NPs was found to be around 12 nm having a surface area of 164.180 m(2) g(-1). The catalytic system was also found to be recyclable and could be reused in subsequent catalytic runs without a significant loss of activity.

  • 4. Brown, Michael
    et al.
    Delorme, Marion
    Malmedy, Florence
    Malmgren, Joel
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Olofsson, Berit
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Wirth, Thomas
    Synthesis of New Chiral Diaryliodonium Salts2015In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 26, no 11, p. 1573-1577Article in journal (Refereed)
    Abstract [en]

    A structurally diverse range of chiral diaryliodonium salts have been synthesised which have potential application in metal-free stereoselective arylation reactions.

  • 5. Bunrit, Anon
    et al.
    Dahlstrand, Christian
    Srifa, Pemikar
    Olsson, Sandra K.
    Huang, Genping
    Stockholm University, Faculty of Science, Department of Organic Chemistry. Tianjin University, China.
    Biswas, Srijit
    Himo, Fahmi
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Samec, Joseph S. M.
    Stockholm University, Faculty of Science, Department of Organic Chemistry. Uppsala University, Sweden.
    Nucleophilic Substitution of the Hydroxyl Group in Stereogenic Alcohols with Chirality Transfer2016In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 27, no 2, p. 173-176Article in journal (Refereed)
    Abstract [en]

    A brief overview of the development of direct substitution of the hydroxyl (OH) group of alcohols in our research group is presented. By applying a BrOnsted acid, an intramolecular substitution of the OH group in stereogenic alcohols with chirality transfer was achieved. Noteworthy, the intramolecular substitution has a wide scope in respect to both the nucleophile and also the nucleofuge. A mechanistic study by both experiments and DFT calculations revealed a unique reaction pathway in which the BrOnsted acid operates in a bifunctional manner to promote an S(N)2-type reaction mechanism.

  • 6.
    Bunrit, Anon
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Dahlstrand, Christian
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Srifa, Pemikar
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Olsson, Sandra K.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Huang, Genping
    Stockholm Univ, Dept Organ Chem, S-10691 Stockholm, Sweden.;Tianjin Univ, Sch Sci, Dept Chem, Tianjin 300072, Peoples R China..
    Biswas, Srijit
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC. Ctr Biomed Res, Lucknow 226014, Uttar Pradesh, India..
    Himo, Fahmi
    Stockholm Univ, Dept Organ Chem, S-10691 Stockholm, Sweden..
    Samec, Joseph S. M.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC. Stockholm Univ, Dept Organ Chem, S-10691 Stockholm, Sweden..
    Nucleophilic Substitution of the Hydroxyl Group in Stereogenic Alcohols with Chirality Transfer2016In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 27, no 2, p. 173-176Article in journal (Refereed)
    Abstract [en]

    A brief overview of the development of direct substitution of the hydroxyl (OH) group of alcohols in our research group is presented. By applying a BrOnsted acid, an intramolecular substitution of the OH group in stereogenic alcohols with chirality transfer was achieved. Noteworthy, the intramolecular substitution has a wide scope in respect to both the nucleophile and also the nucleofuge. A mechanistic study by both experiments and DFT calculations revealed a unique reaction pathway in which the BrOnsted acid operates in a bifunctional manner to promote an S(N)2-type reaction mechanism.

  • 7. Coldham, Iain
    et al.
    Meijer, Anthony J. H. M.
    Sadhukhan, Arghya
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Hobbs, Melanie
    Highly Enantioselective Metalation-Substitution alpha to a Chiral Nitrile2017In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 28, no 8, p. A80-A82Article in journal (Refereed)
  • 8.
    Cumpstey, Ian
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Ramstadius, Clinton
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Borbas, K. Eszter
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Investigation of Coupling Reactions for the Synthesis of Valienamine Pseudodisaccharides2011In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 12, p. 1701-1704Article in journal (Refereed)
    Abstract [en]

    Amine-linked pseudodisaccharides based on valienamine were synthesised by C-N bond-forming reactions between valienol-derived C-1 electrophiles and carbohydrate nitrogen nucleophiles. Palladium-catalysed coupling with trichloroacetimidate leaving groups, Mitsunobu reactions with a nosylamide nucleophile, and alkylation of amines by C-1 bromides were investigated.

  • 9.
    Hirner, Sebastian
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Somfai, Peter
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Microwave-Assisted Rearrangement of Vinylaziridines to 3-Pyrrolines: Formal Synthesis of (-)-Anisomycin2005In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 20, p. 3099-3102Article in journal (Refereed)
    Abstract [en]

    An efficient microwave-assisted rearrangement of activated vinylaziridines to 3-pyrrolines is described. The rearrangement proceeds in good to excellent yields and is mediated by NaI or LiI in MeCN at elevated temperatures. The synthetic utility of this reaction is shown in an efficient formal total synthesis of the antibiotic (-)-anisomycin.

  • 10.
    Hussain, Munawar
    et al.
    Umeå University, Faculty of Science and Technology, Department of Chemistry. Institute of Chemistry, University of Rostock, Rostock, Germany.
    Sung, Tran Van
    Langer, Peter
    Domino Twofold Heck/6π-Electrocyclization Reactions of 1,2-Dihaloalkenes2012In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 19, p. 2735-2744Article in journal (Refereed)
    Abstract [en]

    Domino twofold Heck/6 pi-electrocyclization reactions of 1,2-dihaloalkenes allow for a convenient synthesis of benzene derivatives. In recent years, this strategy has been applied to various 1,2-dihalogenated carbocyclic alkenes and heterocycles, and a variety of benzo-fused ring systems have been prepared. The electrocyclization reactions proceed well for five-membered, but not for six-membered heterocycles.

  • 11. Larsson, Johanna
    et al.
    Demory, Emilien
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Devaraj, Karthik
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Sollert, Carina
    Pilarski, Lukasz
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Selective Activation of Arylboronate or Aryne Reactivity as a Versatile Postfunctionalization Strateg2016In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 27, no 7, p. 969-976Article in journal (Refereed)
  • 12.
    Larsson, Johanna
    et al.
    OnTarget Chem, Virdings Alle 32B, S-75450 Uppsala, Sweden..
    Demory, Emilien
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry.
    Devaraj, Karthik
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry.
    Sollert, Carina
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry.
    Pilarski, Lukasz T.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry.
    Selective Activation of Arylboronate or Aryne Reactivity as a Versatile Postfunctionalization Strategy2016In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 27, no 7, p. 969-976Article in journal (Refereed)
    Abstract [en]

    This review discusses the preparation and orthogonal reactivity of boryl ortho-silyl(hetero)aryl triflates as precursors for arynes. These triflates undergo a wide variety of selective reactions of either the boronate or aryne component. Activation of the boronate group affords diverse (hetero)aryne precursors, whereas aryne activation and capture gives previously difficult-to-access arylboronates, all starting from the same set of common starting materials. Thus, the boronate and aryne functionality can be used for their mutual postfunctionalization with unprecedented flexibility.

  • 13.
    Lavén, Gaston
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Stawinski, Jacek
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Palladium(0)-catalyzed benzylation of H-phosphonate diesters: An efficient entry to benzylphosphonates2009In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 2, p. 225-228Article in journal (Refereed)
    Abstract [en]

    A new, efficient method for the synthesis of benzylphosphonate diesters via a palladium(0)-catalyzed cross-coupling reaction between benzyl halides and H-phosphonate diesters, using Pd(OAc)2 as a palladium source and Xantphos as a supporting ligand, has been developed.

  • 14.
    Lundberg, Helena
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Tinnis, Fredrik
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Adolfsson, Hans
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Titanium(IV) Isopropoxide as an Efficient Catalyst for Direct Amidation of Nonactivated Carboxylic Acids2012In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 23, no 15, p. 2201-2204Article in journal (Refereed)
    Abstract [en]

    Secondary and tertiary amides are formed in high yields, in an efficient and environmentally benign titanium(IV) isopropoxide catalyzed direct amidation of carboxylic acids with primary and secondary amines.

  • 15.
    Mendoza, Abraham
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Colas, Kilian
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Suarez-Pantiga, Samuel
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Götz, Daniel C. G.
    Johansson, Magnus J.
    Chemical Innovation through Ligand Total Synthesis2016In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 27, no 12, p. 1753-1759Article in journal (Refereed)
    Abstract [en]

    Natural products are an abundant source of synthetic challenges that foster crucial breakthroughs in organic chemistry. Despite the superior complexity of these targets, ligand total synthesis can inspire solutions to unsolved chemical problems and provide access to creative catalyst designs. This Synpacts article presents a comparative analysis of natural and ligand total synthesis to provide a context for our recent research and motivate the importance of future undertakings in this area.

  • 16.
    Merritt, Eleanor A.
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Malmgren, Joel
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Klinke, Felix J.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Olofsson, Berit
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Synthesis of diaryliodonium triflates using environmentally benign oxidizing agents2009In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 14, p. 2277-2280Article in journal (Refereed)
  • 17.
    Moberg, Christina
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Wingstrand, Erica
    Enantioenriched Acylated Cyanohydrins: Synthesis and Analysis2010In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 3, p. 355-367Article in journal (Refereed)
    Abstract [en]

    The addition of acyl cyanides to prochiral aldehydes catalyzed by a chiral Lewis acid and an achiral Lewis base produces highly enantioenriched O-acylated cyanohydrins. alpha-Keto esters undergo the same type of addition, although via a different mechanism in which the enantioselectivity originates from a chiral Lewis base. In the presence of a biocatalyst, the minor, undesired enantiomer obtained in the reactions with aldehydes can be selectively hydrolyzed to re-form the starting aldehyde, permitting the reaction to be run in a cyclic manner. The minor-enantiomer recycling results in an essentially enantiopure product. Selective enzymatic hydrolysis is also a key step in high-throughput analysis of conversions and enantiomeric ratios.

  • 18. Mohan, Halasayam
    et al.
    Gemma, Emiliano
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Ruda, Katinka
    Oscarson, Stefan
    Efficient Synthesis of Spacer-linked Dimers of N-Acetyllactosamine Using Microvawe-assisted Pyridinium Triflate-promoted Glycosylations with Oxazoline Donors2003In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 9, p. 1255-1256Article in journal (Refereed)
  • 19.
    Odell, Luke R.
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry.
    Russo, Francesco
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry.
    Larhed, Mats
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry.
    Molybdenum Hexacarbonyl Mediated CO Gas-Free Carbonylative Reactions2012In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 5, p. 685-698Article in journal (Refereed)
    Abstract [en]

    This Account summarizes predominately our own experiences in developing microwave-heated palladium-catalyzed Mo(CO)6-mediated gas-free carbonylative reactions, although contributions from other groups, including non-palladium-catalyzed examples, have also been covered. Presented reactions include amino-, amido-, and alkoxycarbonylations as well as carbonylative cyclizations and carbonylative cross-couplings, using Mo(CO)6 as a solid source of CO. The methodology was developed mainly for rapid small-scale applications, avoiding the problematic use of gaseous CO in a standard laboratory. In most cases, the reported Mo(CO)6-mediated carbonylations were conducted in sealed vessels and with reaction times of less than 1 hour. The Account also highlights relevant applications in medicinal and high-speed chemistry.

  • 20. Ohberg, L.
    et al.
    Westman, J.
    One-pot three-step solution phase syntheses of thiohydantoins using microwave heating2001In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 12, p. 1893-1896Article in journal (Other academic)
    Abstract [en]

    An efficient one-pot three-step solution phase protocol suitable for library syntheses of thiohydantoins was developed. The reactions included are in the following order, Negishi or Suzuki C-C coupling reactions, reductive amination and finally a cyclisation reaction. Protocols using a solid supported reagent and protocols suitable for combinatorial chemistry were developed, all including microwave heating.

  • 21. Shirani, Hamid
    et al.
    Stensland, Birgitta
    Bergman, Jan
    Södertörn University, School of Life Sciences.
    Janosik, Tomasz
    New routes to 3-(Arylthio)indoles: Application to the synthesis of the 3,3 '-bis(indolyl) sulfone core of the marine alkaloid echinosulfone A2006In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 15, p. 2459-2463Article in journal (Refereed)
    Abstract [en]

    A new approach to 3-(arylthio)indoles and related compounds has been developed, based on the reactions of aryl Grignard reagents or lithiated heteroaroinatics with a phenylsulfonyl-protected 3,3'-bis(indolyl) disulfide. In addition, a rational approach to the 3,3'-bis(indolyl) sulfone core of the alkaloid echinosulfone A has been accomplished, involving treatment of a 3-lithioindole with bis(phenylsulfonyl) sulfide as the key step.

  • 22.
    Somfai, Peter
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Panknin, Olaf
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Investigations of the 2,3 -sigmatropic rearrangements of vinylaziridines and allylic amines2007In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 8, p. 1190-1202Article in journal (Refereed)
    Abstract [en]

    This account summarizes our studies of [2,3]-sigmatropic rearrangements of vinylaziridines and allylic amines. The scope and limitations of the reactions as well as our present mechanistic understanding are also discussed.

  • 23.
    Utas, Josefin E.
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Olofsson, Berit
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Åkermark, Björn
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Efficient Synthesis of 2-Substituted Imidazoles by Palladium-Catalyzed Cross-Coupling with Benzylzinc Reagents2006In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 12, p. 1965-1967Article in journal (Refereed)
    Abstract [en]

    Substituted benzylzinc reagents have been used in novel cross-coupling reactions with 2-iodo imidazoles to form compounds containing both a phenol and an imidazole moiety. The ­intramolecular hydrogen-bonding properties of these compounds were subsequently studied.

  • 24.
    Xiong, Ruisheng
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.
    Borbas, Eszter
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.
    Mild Microwave-Assisted Synthesis of Dipyrromethanes and Their Analogues2014In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 26, p. 484-488Article in journal (Refereed)
    Abstract [en]

    The Mannich reaction between pyrroles or indoles and Eschenmoser’s salt (dimethylmethylideneammonium iodide) forms N,N-dimethylamino-methylated derivatives in good to excellent yields. The reaction is highly regioselective, and for pyrroles both 2- and 3-sub- stituted derivatives could be obtained. The N,N-dimethylaminometh- ylpyrroles and indoles underwent substitution with pyrrole under mi- crowave irradiation, affording the appropriate dipyrromethanes, N- confused, and indolo-dipyrromethanes in moderate to excellent overall yield. 

  • 25.
    Xiong, Ruisheng
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Borbas, K. Eszter
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC.
    Mild Microwave-Assisted Synthesis of Dipyrromethanes and Their Analogues2015In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, Vol. 26, no 4, p. 484-488Article in journal (Refereed)
    Abstract [en]

    The Mannich reaction between pyrroles or indoles and Eschenmoser's salt (dimethylmethylideneammonium iodide) forms N,N-dimethylamino-methylated derivatives in good to excellent yields. The reaction is highly regioselective, and for pyrroles both 2- and 3-substituted derivatives could be obtained. The N,N-dimethylaminomethylpyrroles and indoles underwent substitution with pyrrole under microwave irradiation, affording the appropriate dipyrromethanes, N-confused, and indolo-dipyrromethanes in moderate to excellent overall yield.

  • 26.
    Zhu, Mingzhao
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Jalalian, Nazli
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Olofsson, Berit
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    One-pot synthesis of diaryliodonium salts using toluenesulfonic acid - a fast entry to electron-rich diaryliodonium tosylates and triflates2008In: Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, ISSN 0936-5214, E-ISSN 1437-2096, no 4, p. 592-596Article in journal (Refereed)
    Abstract [en]

    A direct synthesis of symmetric and unsymmetric electron-rich diaryliodonium salts is described. The use of MCPBA and toluenesulfonic acid delivers diaryliodonium tosylates in high yields. An in situ anion exchange has also been developed, giving access to the corresponding triflate salts.

1 - 26 of 26
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