A C-20 2/3 FORMALDEHYDE CYCLOHEXANONE ADDUCT

被引：1
|
作者：
NEWTON, MG
HILL, RK
机构：
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 1994年 / 50卷
关键词：
D O I：
10.1107/S0108270194005743
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The structure of the base-catalyzed condensation product of cyclohexanone and formaldehyde, (+/-)(4a alpha,6 beta,9a beta, 10a beta,14a beta,15aR*,17S*)-hexadecahydrol 4a,6,9a-(epoxymetheno)benzo[b]benzo[2,3] cyclcocta[1,2-e]pyran-17-ol, C20H30O3, reported by Plesek and Munk [Collect. Czech. Chem. Commun. (1957), 22, 1596-1602; Chem. Listy (1957), 51, 633-638], is confirmed to be a 2:3 adduct of formaldehyde to cyclehexanone, being formed by a sequence of aldol and Michael reactions followed by intramolecular ketal and hemi-ketal formation.
引用
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页码：1969 / 1971
页数：3
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