One-pot synthesis of small spirocarbocycles through the catalytic cyclometalation reactions of unsaturated compounds
作者:Vladimir Anatolievich Dyakonov、Regina Adikovna Tuktarova、Olga Alexandrovna Trapeznikova、Leonard Mukhibovich Khalilov、Natal’ya Romanovna Popod’ko
DOI:10.3998/ark.5550190.0012.802
日期:——
The mild and efficient one-pot methods to synthesize substituted spirocyclopropanes and spirocyclobutanes are reported. The elaborated procedures based on consecutive cycloalumination of methylenecyclopropanes, methylenecyclobutanes or cycloalkynes assisted by alkyl aluminums and Cp2ZrCl2 as a catalyst provide the formation of target products through Pd catalyzed carbocyclization of the aluminacyclopentane
报道了合成取代的螺
环丙烷和螺
环丁烷的温和高效的一锅法。基于由烷基
铝和 Cp2ZrCl2 作为
催化剂辅助的
亚甲基环丙烷、
亚甲基环丁烷或环
炔烃的连续环
铝化的详细程序提供通过 Pd 催化的
氧化
铝环戊烷和
氧化
铝环戊烯中间体与 Me2SO4 或
烯丙基
氯的
碳环化形成目标产物。