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Volumn 52, Issue 2, 2004, Pages 279-281

Preparation of new nitrogen-bridged heterocycles. 55. Reinvestigation of the bromination/dehydrobromination of ethyl 3-[2-(methylthio)indolizin-3-yl] acrylate derivatives

Author keywords

3 vinylindolizine; Bromination; Intramolecular cyclization; Thieno 2,3 b indolizine; X ray analysis

Indexed keywords

ACRYLIC ACID DERIVATIVE; BRIDGED COMPOUND; BROMIDE; BROMINE; CARBOXYLIC ACID DERIVATIVE; HETEROCYCLIC COMPOUND; INDOLIZINE DERIVATIVE; BENZYLTRIMETHYLAMMONIUM; NITROGEN; QUATERNARY AMMONIUM DERIVATIVE;

EID: 4444314702     PISSN: 00092363     EISSN: 13475223     Source Type: Journal    
DOI: 10.1248/cpb.52.279     Document Type: Article
Times cited : (3)

References (21)
  • 3
    • 27844462987 scopus 로고    scopus 로고
    • note
    • The action of benzyltrimethylammonium tribromide as a brominating agent is weaker than that of bromine.
  • 4
    • 27844564840 scopus 로고    scopus 로고
    • note
    • This result was the same with that in the reactions of 1c with bromine, but the yield of 4c increased. See, ref. 2.
  • 17
    • 27844598814 scopus 로고    scopus 로고
    • note
    • Selected atomic electron densities for diethyl thieno[2,3-b]indolizine-2, 9-dicarboxylate (4a) by MOPAC PM3 calculation (WinMOPAC (Version 2), Fijitsu Corporation) are as follows; C-3 (3.9469), C-5 (3.9269), C-6 (4.1017), C-7 (4.0279), C-8 (4.0492). Thus, the 6-carbon has the highest electron density.
  • 18
    • 33847803954 scopus 로고
    • These compounds are useful substrates for some carbon-carbon bond formation reactions such as Heck reaction. See: Dieck H. A., Heck R. F., J. Am. Chem. Soc., 96, 1133-1136 (1974).
    • (1974) J. Am. Chem. Soc. , vol.96 , pp. 1133-1136
    • Dieck, H.A.1    Heck, R.F.2
  • 19
    • 4444264948 scopus 로고
    • These compounds are useful substrates for some carbon-carbon bond formation reactions such as Heck reaction. See: Heck R. F., Acc. Chem. Res., 12, 146-151 (1978).
    • (1978) Acc. Chem. Res. , vol.12 , pp. 146-151
    • Heck, R.F.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.