(2S,3S,4R,5R,8R)-8-(acryloyloxy)-3,4-bis[(tert-butyldimethylsilyl)-oxy]undec-10-en-6-yne-2,5-diyl diacetate 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
反应 5.0h,
以92%的产率得到(2S,3S,4R,5R)-3,4-bis[(tert-butyldimethylsilyl)oxy]-7-[(R)-6-oxo-3,6-dihydro-2H-pyran-2-yl]hept-6-yne-2,5-diyl diacetate