New preparation of reactive zinc metal by electrolysis and its use for a facile isoprenylation of aldehydes and ketones
作者:Masao Tokuda、Nobuo Mimura、Tamae Karasawa、Hirotake Fujita、Hiroshi Suginome
DOI:10.1016/s0040-4039(00)60412-4
日期:1993.11
Reactive zinc metal can be prepared by the electrolysis of a DMF solution containing Et4NClO4 with a platinum cathode and a zinc anode. The reaction of 2-bromomethyl-1, 4-dibromo-2-butene (1) with aldehydes or ketones in the presence of the electrogenarated reactive zinc (EGZn) in DMF at 0 °C gave the corresponding isoprenylated alcohols (3a-3n) in good yields.
活性锌金属可通过电解含有Et 4 NClO 4的DMF溶液与铂阴极和锌阳极来制备。2-溴甲基-1,4-二溴-2-丁烯(1)与醛或酮在DMF中在电化反应性锌(EGZn)的存在下于0°C反应,得到相应的异戊烯基化的醇(3a-3n)丰产。