叔丁基二甲硅基三氟甲磺酸酯 、
2,2-Dimethyl-propionic acid (E)-6,6-diethoxy-2-(7-hydroxy-1,4-dioxa-spiro[4.4]non-8-en-7-ylethynyl)-hex-2-en-4-ynyl ester 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以99%的产率得到2,2-Dimethyl-propionic acid (E)-2-[7-(tert-butyl-dimethyl-silanyloxy)-1,4-dioxa-spiro[4.4]non-8-en-7-ylethynyl]-6,6-diethoxy-hex-2-en-4-ynyl ester