Author:
Mayo P. De,Starratt A. N.
Abstract
Ceanothic acid, a substance previously isolated by Julian, Pikl, and Dawson (J. Am. Chem. Soc. 60, 77 (1938)), has been shown to be a triterpenoid related to the lupeol–betulin group, but in which ring A is five-membered. It has been degraded to the keto ester A norbetulonic acid methyl ester, a substance of defined constitution and stereochemistry. The hydroxyl and carboxyl groups attached to ring A have been shown by spectroscopic studies to be trans, the stereochemistry of ceanothic acid being that represented by (XII).
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
13 articles.
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