付氏反应中自由基的鉴定及其生成机理  

Identification and the Mechanism of Formation of the Radicals in Friedel-Crafts Reactions

作　　者：党海山 刘有成[1] 胡文甦 陈伟[2] Dang Haishan;Liu Youcheng;Hu Wensu;Chen Wei(Department of Chemistry,Lanzhou University,Lanzhou;Analytical and Testing Center of Lanzhou University,Lanzhou)

机构地区：[1]兰州大学化学系 [2]兰州大学分析测试中心

出　　处：《高等学校化学学报》1988年第7期687-691,共5页Chemical Journal of Chinese Universities

摘　　要：本文通过一系列卤代烃与苯的付氏反应的ESR谱,研究了自由基物种的生成机理:它们起因于Lewis酸对由Scholl反应所生成的9,10-二取代蒽进行单电子氧化,并建立了一种生成9,10-二取代蒽自由基正离子的简单方法。首次报道了一个新自由基正离子1,2,3,4,5,6,7,8-八氘蒽的ESR谱。Friedel-Crafts reactions of a series of alkyl halides with benzene gave well-resolved ESR spectra which originated from 9,10-disubstituted anthracene radical cations formed through one-electron oxidation of the parent compounds by Lewis acid.A simple method for the formation of 9,10-disubstituted anthracene radical cations has been developed and an ESR spectrum of a new radical cation 1,2,3,4,5,6,7,8-octadeuteroanthracene is reported.

关 键 词：付氏反应 ESR谱 自由基正离子 

分 类 号：R28[医药卫生—中药学]