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Volumn 47, Issue 12, 2006, Pages 1977-1980

One-pot, cis-selective synthesis of α-substituted β-trimethylsilyl-α,β-epoxyesters from α-ketoesters and diazo(trimethylsilyl)methyl magnesium bromide

Author keywords

Ketoesters; Epoxyesters; Glycidates; One pot synthesis; Trimethylsilyldiazomethane

Indexed keywords

BROMINE DERIVATIVE; DIAZO(TRIMETHYLSILYL)METHYL MAGNESIUM BROMIDE; EPOXIDE; ESTER DERIVATIVE; PIVALIC ACID; UNCLASSIFIED DRUG;

EID: 32644466551     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.01.067     Document Type: Article
Times cited : (14)

References (53)
  • 46
    • 32644473994 scopus 로고    scopus 로고
    • note
    • Spectroscopic data of the crude product showed the presence of 1,3-Brook rearrangement product formed by the intermediate 3a-Li.
  • 47
    • 32644480617 scopus 로고    scopus 로고
    • note
    • 2O), 4.20-4.29 (m, 2H), 7.17-7.31 (m, 5H).
  • 48
    • 32644469093 scopus 로고    scopus 로고
    • note
    • 4, and concentrated in vacuo. The residue was purified by column chromatography on silica gel (BW-200MH, 10 g, hexane-EtOAc = 30:1) to afford 4a (125 mg, 88%, cis:trans = 96:4).
  • 49
    • 32644474176 scopus 로고    scopus 로고
    • note
    • The stereochemistry of the compounds 4 was determined by NOESY measurement.
  • 50
    • 32644477749 scopus 로고    scopus 로고
    • note
    • 3) δ: 0.24 (s, 9H), 1.53 (s, 9H), 2.76 (s, 1H), 7.31-7.34 (m, 3H), 7.43-7.46 (m, 2H).
  • 53
    • 32644461576 scopus 로고    scopus 로고
    • note
    • 4, and concentrated in vacuo. The residue was purified by column chromatography on silica gel (BW-200MH, 6 g, hexane-EtOAc = 30:1) to afford 4a (77 mg, 54%, cis:trans = 32:68).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.