4-[(4S,5S,6S)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-6-methyl-5,6-dihydro-4H-pyran-2-yl]-2-bromo-5-methoxy-4-triethylsilanyloxy-4H-naphthalen-1-one 、
(E)-4-Tributylstannanyl-but-3-enoic acid methyl ester 在
四(三苯基膦)钯 2,6-二叔丁基-4-甲基苯酚 作用下,
以
甲苯 为溶剂,
反应 6.0h,
生成 (E)-4-{4-[(4S,5S,6S)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-6-methyl-5,6-dihydro-4H-pyran-2-yl]-5-methoxy-1-oxo-4-triethylsilanyloxy-1,4-dihydro-naphthalen-2-yl}-but-3-enoic acid methyl ester 、 (Z)-4-{4-[(4S,5S,6S)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-6-methyl-5,6-dihydro-4H-pyran-2-yl]-5-methoxy-1-oxo-4-triethylsilanyloxy-1,4-dihydro-naphthalen-2-yl}-but-3-enoic acid methyl ester