(2E,6E)-(R)-8-[(2R,4S,6R,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-4,6-dimethyl-octa-2,6-dien-1-ol 在
草酰氯 、
三乙胺 作用下,
以
二甲基亚砜 为溶剂,
生成
(2E,6E)-(R)-8-[(2R,4S,6R,8R,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-4,6-dimethyl-octa-2,6-dienal 、 (2E,6E)-(R)-8-[(2R,4S,6R,8S,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-4,6-dimethyl-octa-2,6-dienal