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Volumn 352, Issue 11-12, 2010, Pages 2041-2049

Direct synthesis of pyrazolo[5,1-a]isoindoles via intramolecular palladium-catalyzed C-H bond activation

Author keywords

C H activation; Direct arylation; Palladium; Pyrazoles

Indexed keywords


EID: 77956378879     PISSN: 16154150     EISSN: 16154169     Source Type: Journal    
DOI: 10.1002/adsc.201000260     Document Type: Article
Times cited : (32)

References (63)
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    • For selected recent examples of intramolecular C-H activation, see: a) Y.-H. Zhang, B.-F. Shi, J.-Q. Yu, Angew. Chem. 2009, 121, 6213-6216
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    • and references cited therein
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    • or on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax.: (internat.) + 44 1223/336-033; e-mail: deposit @ccdc.cam.ac.uk]
    • Crystallographic data (excluding structure factors) for the structure 3e reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication no.CCDC 771302. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif or on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax.: (internat.) + 44 1223/336-033; e-mail: deposit @ccdc.cam.ac.uk]
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    • [2e]. (Image prsented)
    • [2e]. (Image prsented).
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    • We are grateful to a referee for pointing out that the pyrazole group could serve as a directing group, affording the arylated product on the anisole ring of compound 3e. In our case of palladium-catalyzed conditions we could observe no or little anisole-substituted product. For ruthenium-catalyzed direct arylation of N-arylpyrazoles as a directing group, see: a) L. Ackermann, A. Althammer, R. Born, Tetrahedron 2008, 64, 6115-6124
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    • Ackermann, L.1    Althammer, A.2    Born, R.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.