(8E,10E)-7,7-Dimethyl-4-phenylcarbamoyloxy-dodeca-8,10-dien-2-ynoic acid ethyl ester 在
氯化二乙基铝 作用下,
以
甲苯 为溶剂,
生成
(3R,5aR,8aS)-3,6,6-Trimethyl-3,5a,6,7,8,8a-hexahydro-naphtho[1,8-bc]furan-2-one 、 (2R,4aR,8S)-2,5,5-Trimethyl-8-phenylcarbamoyloxy-2,4a,5,6,7,8-hexahydro-naphthalene-1-carboxylic acid ethyl ester 、 (2R,4aR,8R)-2,5,5-Trimethyl-8-phenylcarbamoyloxy-2,4a,5,6,7,8-hexahydro-naphthalene-1-carboxylic acid ethyl ester