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DOI: 10.1055/s-0029-1218814
Palladium-Catalysed Direct Heteroarylation of Bromobenzylacetamide Derivatives: A Simple Access to Heteroarylated Benzylamine Derivatives
Publikationsverlauf
Publikationsdatum:
15. Juni 2010 (online)

Abstract
The palladium-catalysed direct arylation of bromobenzylacetamide derivatives using a wide variety of heteroaromatics gives a very simple access to heteroarylated benzylacetamides. 2-, 3- and 4-Bromobenzylacetamides present a very similar reactivity. In the presence of 2-subtituted furans, thiophenes, pyrroles, thiazoles, or imidazoles a regioselective 5-arylation was observed. The reaction of benzoxazole gave the 2-arylated compounds; whereas 3,5-dimethylisoxazole gave the 4-arylated products. In most cases, the system using PdCl(C3H5)(dppb) as the catalyst, KOAc as the base, and DMAC as the solvent gave high yields of coupling products.
Key words
palladium - cross-coupling reaction - arylation - furans - thiophenes - pyrroles - thiazoles - imidazoles - benzoxazoles
- 1a For
            examples of palladium cross-coupling with heteroaromatic compounds,
            see:  
            Li JJ.Gribble GW. Palladium in Heterocyclic Chemistry Pergamon; Amsterdam: 2000.Reference Ris Wihthout Link
- 1b 
             
            Kondolff I.Doucet H.Santelli M. Synlett 2005, 2057Reference Ris Wihthout Link
- 1c 
             
            Ackermann L. Modern Arylation Methods Wiley-VCH; Weinheim: 2009.Reference Ris Wihthout Link
- 2 
             
            Ohta A.Akita Y.Ohkuwa T.Chiba M.Fukunaga R.Miyafuji A.Nakata T.Tani N.Aoyagi Y. Heterocycles 1990, 31: 1951
- 3a 
             
            Alberico D.Scott ME.Lautens M. Chem. Rev. 2007, 107: 174Reference Ris Wihthout Link
- 3b 
             
            Satoh T.Miura M. Chem. Lett. 2007, 36: 200Reference Ris Wihthout Link
- 3c 
             
            Doucet H.Hierso JC. Curr. Opin. Drug Discovery Dev. 2007, 10: 672Reference Ris Wihthout Link
- 3d 
             
            Campeau L.-C.Stuart DR.Fagnou K. Aldrichimica Acta 2007, 40: 35Reference Ris Wihthout Link
- 3e 
             
            Seregin IV.Gevorgyan V. Chem. Soc. Rev. 2007, 36: 1173Reference Ris Wihthout Link
- 3f 
             
            Li B.-J.Yang S.-D.Shi Z.-J. Synlett 2008, 949Reference Ris Wihthout Link
- 3g 
             
            Bellina F.Rossi R. Tetrahedron 2009, 65: 10269Reference Ris Wihthout Link
- 3h 
             
            Ackermann L.Vincente R.Kapdi AR. Angew. Chem. Int. Ed. 2009, 48: 9792Reference Ris Wihthout Link
- 3i 
             
            Roger J.Gottumukkala AL.Doucet H. ChemCatChem 2010, 2: 20Reference Ris Wihthout Link
- For recent examples of direct arylations of furans, see:
- 4a 
             
            Parisien M.Valette D.Fagnou K. J. Org. Chem. 2005, 70: 7578Reference Ris Wihthout Link
- 4b 
             
            Lindahl K.-F.Carroll A.Quinn RJ.Ripper JA. Tetrahedron Lett. 2006, 47: 7493Reference Ris Wihthout Link
- 4c 
             
            Beccalli EM.Broggini G.Martinelli M.Sottocornola S. Synthesis 2008, 136Reference Ris Wihthout Link
- 4d 
             
            Gottumukkala AL.Doucet H. Adv. Synth. Catal. 2008, 350: 2183Reference Ris Wihthout Link
- 4e 
             
            Liégaut B.Lapointe D.Caron L.Vlassova A.Fagnou K. J. Org. Chem. 2009, 74: 1826Reference Ris Wihthout Link
- 4f 
             
            Dong JJ.Roger J.Pogan F.Doucet H. Green Chem. 2009, 11: 1832Reference Ris Wihthout Link
- 4g 
             
            Ionita M.Roger J.Doucet H. ChemSusChem 2010, 3: 367Reference Ris Wihthout Link
- For recent examples of direct arylations of thiophenes, see:
- 5a 
             
            David E.Pellet-Rostaing S.Lemaire M. Tetrahedron 2007, 63: 8999Reference Ris Wihthout Link
- 5b 
             
            Chiong HA.Daugulis O. Org. Lett. 2007, 9: 1449Reference Ris Wihthout Link
- 5c 
             
            Battace A.Lemhadri M.Zair T.Doucet H.Santelli M. Adv. Synth. Catal. 2007, 349: 2507Reference Ris Wihthout Link
- 5d 
             
            Amaladass P.Clement JA.Mohanakrishnan AK. Tetrahedron 2007, 63: 10363Reference Ris Wihthout Link
- 5e 
             
            Derridj F.Gottumukkala AL.Djebbar S.Doucet H. Eur. J. Inorg. Chem. 2008, 2550Reference Ris Wihthout Link
- 5f 
             
            Nakano M.Tsurugi H.Satoh T.Miura M. Org. Lett. 2008, 10: 1851Reference Ris Wihthout Link
- 5g 
             
            Roger J.Po˛gan F.Doucet H. Green Chem. 2009, 11: 425Reference Ris Wihthout Link
- 5h 
             
            Dong JJ.Roger J.Doucet H. Tetrahedron Lett. 2009, 50: 2778Reference Ris Wihthout Link
- For recent examples of direct arylations of pyrroles or indoles, see:
- 6a 
             
            Bellina F.Cauteruccio S.Rossi R. Eur. J. Org. Chem. 2006, 1379Reference Ris Wihthout Link
- 6b 
             
            Wang X.Gribkov DV.Sames D. J. Org. Chem. 2007, 72: 1476Reference Ris Wihthout Link
- 6c 
             
            Lebrasseur N.Larrosa I. J. Am. Chem. Soc. 2008, 130: 2926Reference Ris Wihthout Link
- 6d 
             
            Fall Y.Doucet H.Santelli M. ChemSusChem 2009, 2: 153Reference Ris Wihthout Link
- 6e 
             
            Roger J.Doucet H. Adv. Synth. Catal. 2009, 351: 1977Reference Ris Wihthout Link
- For recent examples of direct arylations of thiazoles, see:
- 7a 
             
            Gottumukkala AL.Doucet H. Eur. J. Inorg. Chem. 2007, 3629Reference Ris Wihthout Link
- 7b 
             
            Campeau L.-C.Bertrand-Laperle M.Leclerc J.-P.Villemure E.Gorelsky S.Fagnou K. J. Am. Chem. Soc. 2008, 130: 3276Reference Ris Wihthout Link
- 7c 
             
            Martin T.Verrier C.Hoarau C.Marsais F. Org. Lett. 2008, 10: 2909Reference Ris Wihthout Link
- 7d 
             
            Roger J.Po˛gan F.Doucet H. J. Org. Chem. 2009, 74: 1179Reference Ris Wihthout Link
- For recent examples of direct arylations of imidazoles, see:
- 8a 
             
            Bellina F.Cauteruccio S.Mannina L.Rossi R.Viel S. Eur. J. Org. Chem. 2006, 693Reference Ris Wihthout Link
- 8b 
             
            Cerna I.Pohl R.Klepetarova B.Hocek M. Org. Lett. 2006, 8: 5389Reference Ris Wihthout Link
- 8c 
             
            Bellina F.Calandri C.Cauteruccio S.Rossi R. Tetrahedron 2007, 63: 1970Reference Ris Wihthout Link
- 8d 
             
            Bellina F.Cauteruccio S.Di Flore A.Rossi R. Eur. J. Org. Chem. 2008, 5436Reference Ris Wihthout Link
- 8e 
             
            Bellina F.Cauteruccio S.Di Flore A.Marchietti C.Rossi R. Tetrahedron 2008, 64: 6060Reference Ris Wihthout Link
- 8f 
             
            Roger J.Doucet H. Tetrahedron 2009, 65: 9772Reference Ris Wihthout Link
- 9 For recent examples of direct arylations
            of isoxazoles, see:  
            Fall Y.Reynaud C.Doucet H.Santelli M. Eur. J. Org. Chem. 2009, 4041
- For recent examples of direct arylations of oxazoles, see:
- 10a 
             
            Hoarau C.Du Fou de Kerdaniel A.Bracq N.Grandclaudon P.Couture A.Marsais F. Tetrahedron Lett. 2005, 46: 8573Reference Ris Wihthout Link
- 10b 
             
            Turner GL.Morris JA.Greaney MF. Angew. Chem. Int. Ed. 2007, 46: 7996Reference Ris Wihthout Link
- 10c 
             
            Ohnmacht SA.Mamone P.Culshaw AJ.Greaney MF. Chem. Commun. 2008, 1241Reference Ris Wihthout Link
- 10d 
             
            Besselievre F.Mahuteau-Betzer F.Grierson DS.Piguel S. J. Org. Chem. 2008, 73: 3278Reference Ris Wihthout Link
- 10e 
             
            Verrier C.Hoarau C.Marsais F. Org. Biomol. Chem. 2009, 7: 647Reference Ris Wihthout Link
- 10f 
             
            Roger J.Verrier C.Le Goff R.Hoarau C.Doucet H. ChemSusChem 2009, 2: 951Reference Ris Wihthout Link
- 10g 
             
            Besselievre F.Lebrequier S.Mahuteau-Betzer F.Piguel S. Synthesis 2009, 3511Reference Ris Wihthout Link
- 11a 
             
            Hennings DD.Iwasa S.Rawal VH. J. Org. Chem. 1997, 62: 2Reference Ris Wihthout Link
- 11b 
             
            Grigg R.Savic V.Tambyrajah V. Tetrahedron Lett. 2000, 41: 3003Reference Ris Wihthout Link
- 11c 
             
            Li W.-R.Hsu N.-M.Chou H.-H.Lin ST.Lin Y.-S. Chem. Commun. 2000, 401Reference Ris Wihthout Link
- 11d 
             
            Torres JC.Pinto AC.Garden SJ. Tetrahedron 2004, 60: 9889Reference Ris Wihthout Link
- 11e 
             
            Cuny G.Bois-Choussy M.Zhu J. J. Am. Chem. Soc. 2004, 126: 14475Reference Ris Wihthout Link
- 11f 
             
            Parisien M.Valette D.Fagnou K. J. Org. Chem. 2005, 70: 7578Reference Ris Wihthout Link
- 11g 
             
            Campeau L.-C.Parisien M.Jean A.Fagnou K. J. Am. Chem. Soc. 2006, 128: 581Reference Ris Wihthout Link
- 11h 
             
            Wu J.Nie L.Luo J.Dai W.-M. Synlett 2007, 2728Reference Ris Wihthout Link
- 12a 
             
            Shabashov D.Daugulis O. Org. Lett. 2006, 8: 4947Reference Ris Wihthout Link
- 12b 
             
            Kametani Y.Satoh T.Miura M.Nomura M. Tetrahedron Lett. 2000, 41: 2655Reference Ris Wihthout Link
- 12c 
             
            Kim J.Jo M.So W.No Z. Tetrahedron Lett. 2009, 50: 1229Reference Ris Wihthout Link
- 13a 
             
            Murugaiah AMS.Wallinder C.Mahalingam AK.Wu X.Wan Y.Plouffe B.Botros M.Karlen A.Hallberg M.Gallo-Payet N.Alterman M. Bioorg. Med. Chem. 2007, 15: 7166Reference Ris Wihthout Link
- 13b 
             
            Lee S.Shinji C.Ogura K.Shimizu M.Maeda S.Sato M.Yoshida M.Hashimoto Y.Miyachi H. Bioorg. Med. Chem. Lett. 2007, 17: 4895Reference Ris Wihthout Link
- 13c 
             
            Hughes TV.Emanuel SL.O’G rady HR.Connolly PJ.Rugg C.Fuentes-Pesquera AR.Karnachi P.Alexander R.Middleton SA. Bioorg. Med. Chem. Lett. 2008, 18: 5130Reference Ris Wihthout Link
- 14 
             
            Honda T.Namiki H.Satoh F. Org. Lett. 2001, 3: 631
 
    