The direct electrochemical synthesis of 2,2′-bipyridine adducts of organomagnesium halides, and of salts of organodihalogenomagnesium(II) anions
作者:Peter C. Hayes、Akhtar Osman、Narace Seudeal、Dennis G. Tuck
DOI:10.1016/0022-328x(85)80197-2
日期:1985.8
The electrochemical oxidation of magnesium into acetonitrile solutions containing alkyl or aryl halides (RX) and 2,2′-bipyridine (bipy) yields the neutral adducts RMgX · bipy. With α,ω-dihalides XR′X, the products are the corresponding R′Mg2X2 · 2bipy compounds. The preparation proceeds equally well with either aryl or alkyl compounds, and with chlorides, bromides, or iodides, but the resultant adducts
将镁电化学氧化为含有烷基或芳基卤化物(RX)和2,2'-联吡啶(bipy)的乙腈溶液,得到中性加合物RMgX·bipy。对于α,ω-二卤化物XR'X,产物是相应的R'Mg 2 X 2 ·2bipy化合物。不论是用芳基化合物还是烷基化合物,以及使用氯化物,溴化物或碘化物,制备过程均能很好地进行,但是所得加合物除了用矿物酸消除烷烃外,没有表现出格利雅试剂的典型反应。用含有RX和R解决方案' 4 NX,电化学氧化产物是盐R' 4 N [RMGX 2 ·CH 3 CN],其也缺乏典型的格氏试剂的化学反应。