三丁基(三甲基甲硅烷基乙炔基)锡 、 Acetic acid (2S,3R,4S,5R)-4,5-bis-allyloxy-6-chloro-3-triethylsilanylethynyl-tetrahydro-pyran-2-ylmethyl ester 在
3 A molecular sieve 、
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
以44%的产率得到Acetic acid (2S,3R,4S,5R,6R)-4,5-bis-allyloxy-3-triethylsilanylethynyl-6-trimethylsilanylethynyl-tetrahydro-pyran-2-ylmethyl ester