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Volumn 63, Issue 26, 1998, Pages 9739-9745

Unusual preference for ketone and reversal of chemoselectivity in Lewis acid-catalyzed aldol reaction of ketene silyl acetal

Author keywords

[No Author keywords available]

Indexed keywords

ACETAL DERIVATIVE; ALDEHYDE; KETENE DERIVATIVE; KETONE;

EID: 0032567298     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo981218v     Document Type: Article
Times cited : (25)

References (44)
  • 30
    • 20644438082 scopus 로고    scopus 로고
    • note
    • -1 mol/L) because the acceptor property of the tin catalyst is so weak that, otherwise, no appreciable shifts of the signals could be detected. The measurements were carried out at 20 °C due to the high viscosity or freezing of the solution at lower temperatures. It is noted, however, that the ketone preference virtually holds even at room temperature despite a slightly lower selectivity (for example, 78:22 in the competition between 2a and 3b).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.