Reductive activation of arenes. VII. Alkylation of 9-cyanoanthracene two-electron reduction products in liquid ammonia.
作者:Tamara A. Vaganova、Elena V. Panteleeva、Andrej P. Tananakin、Vitalij D. Shteingarts、Itzhak I. Bilkis
DOI:10.1016/s0040-4020(01)89616-2
日期:1994.1
liquid ammonia with primary alkyl iodides and bromides gave 9-cyano-9,10-dialkyl-9,10-dihydroanthracenes. The alkylation of the 9-cyano-9,10-dihydro-9-anthryl anion generated by the two-electron reduction of 9-cyanoanthracene in liquid ammonia in the presence of ammonium chloride gave 9-cyano-9-alkyl-9,10-dihydroanthracene. The results obtained by using cyclopropylmethyl bromide as model reagent suggest
在液体氨中两当量钾的作用下,生成的9-氰基蒽二价阴离子与伯烷基碘和溴化物反应,得到9-氰基-9,10-二烷基-9,10-二氢蒽。在氯化铵的存在下,在液氨中将9-氰基蒽进行两电子还原,将9-氰基-9,10-二氢-9-蒽阴离子烷基化,得到9-氰基-9-烷基-9,10。 -二氢蒽。通过使用环丙基甲基溴作为模型试剂获得的结果表明,这些反应是通过S N机理进行的。讨论了9,10-二氢蒽衍生物的空间结构。