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An unusual reaction of flavan-3-ols with acetone of relevance to the formation of the tetracyclic ring system in peltogynoids

✍ Scribed by Jan H. Van Der westhuizen; Jacobus A. Steenkamp; Daneel Ferreira

Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
353 KB
Volume
46
Category
Article
ISSN
0040-4020

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✦ Synopsis

are in moist acetone subject to acid-catalyzed incorporation of an 1-mcthylethylidcnc fragment between 3-CH and C-2 (Bring) to give a tetracyclic ring system reminiscent of the peltogynoid series of flavonoids.

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