A method of preparing a cyclopropane ring-bearing compound of the formula (I) in which R1 and R2 are independently selected from C1-C10 alky], optionally substituted, or R1 and R2 together with the bonds linking them to the cyclopropane ring, form a monocyclic or bicyciic ring system, which may comprise at least one hetero-atom, comprising the reaction of a compound of formula (II) in which R1 and R2 have the significances hereinabove defined, with a compound of formula (III) in which X is selected a nucieofuge selected from halides and pseudohalides and Y is an electro flige selected from boranes and borates, in the presence of a metal catalyst complex selected from those that a useful for catalytic cyclopropanation and those useful for catalyzing Heck coupling. The method prov ides a particularly easy and non-hazardous method of cyclopropanation.
一种制备
环丙烷环的化合物的方法,其
化学式为(I),其中R1和R2分别选自C1-C10烷基,可选地被取代,或者R1和R2连同将它们与
环丙烷环连接的键形成一个单环或双环环系统,该环系统可能包含至少一个杂原子,包括将化合物的反应式(II)中的R1和R2具有上述定义的含义,与将X选为卤化物和伪卤化物中的一种亲核裂解物质,Y选为
硼烷和
硼酸盐中的一种电子受体,在选择用于催化
环丙烷化和用于催化Heck偶联的
金属催化剂复合物的存在下进行。该方法提供了一种特别简单且无危险的
环丙烷化方法。