The stereocontrolled photoaddition of allene to cyclopent-1-ene-1-carboxaldehydes. A total synthesis of (±) steviol methyl ester and isosteviol methyl ester
作者:Frederick E. Ziegler、James A. Kloek
DOI:10.1016/0040-4020(77)80089-6
日期:1977.1
The stereochemistry of the photoaddition of allene to hydroindenal 19 is explored. The stereochemistry is proven by conversion into steviol methyl ester 22b and isosteviol methyl ester 24.