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Volumn , Issue 11, 1998, Pages 1604-1608

Preparation of 5-acyl- and 5-aryl-substituted 1-(benzyloxy)pyrazoles via directed ortho-lithiation/transmetalation and palladium catalyzed cross- coupling

Author keywords

Acylation arylation; Metalation; Negishi cross coupling; Pyrazoles; Zinc

Indexed keywords

LITHIUM; PALLADIUM; PYRAZOLE DERIVATIVE;

EID: 0031774843     PISSN: 00397881     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1998-2201     Document Type: Article
Times cited : (33)

References (43)
  • 20
    • 0003579935 scopus 로고    scopus 로고
    • CRC: Boca Raton, FL
    • For a review on transition-metal-catalyzed reactions of organozinc reagents, see: Erdik, E. In Organozinc Reagents in Organic Synthesis; CRC: Boca Raton, FL, 1996; pp 271-343.
    • (1996) Organozinc Reagents in Organic Synthesis , pp. 271-343
    • Erdik, E.1
  • 29
    • 34548053383 scopus 로고    scopus 로고
    • note
    • 31
  • 33
    • 34548054239 scopus 로고    scopus 로고
    • note
    • 1H NMR.
  • 35
    • 34548053591 scopus 로고    scopus 로고
    • note
    • 36-38
  • 39
    • 34548054355 scopus 로고    scopus 로고
    • note
    • Performing the reaction at 20°C using 1-iodo-2-nitrobenzene as the aryl iodide gave only 8% conversion to 5b.
  • 40
    • 34548052834 scopus 로고    scopus 로고
    • note
    • 41 have reported that the cross-coupling of 4-bromobenzaldehyde and butylzinc halide gives maximum yield using a 1:2 mixture of THF and HMPA as solvent.
  • 43
    • 34548053811 scopus 로고    scopus 로고
    • note
    • 2 requires subsequent evaporation of substantial amounts of DMF.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.