作者:M. Veber、K.N.V. Duong、F. Gaudemer、A. Gaudemer
DOI:10.1016/s0022-328x(00)92348-9
日期:1979.9
Allylcobaloximes react under very mild conditions with ethyl bromomalonate to yield allyl-substituted ethylmalonates in good yield. In the case of crotyl-, 3,3 dimethyl, allyl- and cinnamyl-cobaloximes, the substitution occurs with total rearrangement of the allyl groups. Similar rearrangements are observed during the reactions of propargyl- and allenylcobaloximes with BrCH(CO2Et)2 yielding allenyl-
烯丙基钴肟在非常温和的条件下与溴代丙二酸乙酯反应,以高收率得到烯丙基取代的丙二酸乙酯。在巴豆基,3,3-二甲基,烯丙基-和肉桂基-钴肟的情况下,取代发生在烯丙基的全部重排。在炔丙基-和烯丙基钴肟与BrCH(CO 2 Et)2的反应过程中观察到类似的重排,分别产生烯丙基-和炔丙基-丙二酸酯。