adduct afforded the corresponding gem-difluoromethylenated bicyclic compounds 4, which underwent ring-expansion followed by the Baeyer–Villiger-type oxidation of the resulting macrocyclic ketone intermediates to give gem-difluoromethylenated macrocyclic lactones 5.
氟化物催化立体选择性亲核加成PhSCF的2森达3(1)〜α-carboethoxycycloalkanones 2,然后将所得的分子内自由基环化顺式- 3的加合物,得到相应的宝石-difluoromethylenated
双环化合物4,后行环扩大随后贝耶尔其-所得大环酮中间体的维利格型氧化,得到宝石-二
氟甲基化的大环内酯5。