(E)-tert-butyl 6-(tert-butyldimethylsilyloxy)-3-methyloct-2-en-7-ynyl carbonate 在
indium (III) iodide 作用下,
以
二氯甲烷 为溶剂,
生成 (4aR,8aS)-6-(tert-butyldimethylsilyloxy)-8a-methyl-5-methylenehexahydro-4H-benzo[d][1,3]dioxin-2-one 、 (4aR,8aS)-6-(tert-butyldimethylsilyloxy)-8a-methyl-5-methylenehexahydro-4H-benzo[d][1,3]dioxin-2-one