1,5-anhydro-3,4,6-tri-O-benzyl-2-deoxy-1,2-C-(dibromomethylene)-D-glycero-D-gulo-hexitol 在
silver trifluoroacetate 、
silver nitrate 作用下,
反应 96.0h,
生成
(Z)-1-O-allyl-3,6-anhydro-4,5,7-tri-O-benzyl-2-bromo-2-deoxy-D-arabino-hept-1-enitol 、 3,6-anhydro-4,5,7-tri-O-benzyl-2-bromo-2-deoxy-D-arabino-septanose diallyl acetal