Journal of Organic Chemistry p. 3929 - 3933 (1992)
Update date:2022-07-30
Topics:
Minisci, Francesco
Coppa, Fausta
Fontana, Francesca
Pianese, Giuseppe
Zhao, Lihua
Carbon-centered radicals react with diazonium salts by addition, leading under reductive conditions to azo derivatives (free-radical diazocoupling), or by electron-transfer in chain processes.The reaction is highly sensitive to polar effects and it has been investigated by three different processes: (i) alkyl radicals, generated from alkyl iodides, H2O2, Fe(II) salt, and DMSO, have been utilized to develop a new general synthesis of alkylarylazo compounds; (ii) the reaction of aryl radicals with diazonium salts in the presence of Ti(III) or Fe(II) salts has been investigated, also in relation to the fact that the reaction products (azoarenes and biaryls) are often detected as side products in classical organic reactions of diazonium salts, catalyzed by Cu(I) salts, such as the Sandmeyer, Meerwein, and Pschorr reactions; (iii) adducts from addition of aryl radicals to vinyl acetate or vinyl ether react with diazonium salts either by diazocoupling reaction or by electron-transfer; a general synthesis of <α-(acyloxy)alkyl>arylazo compounds has been developed.
View MoreShanghai Synmedia Chemical Co., Ltd
Contact:+86-21-38681880
Address:6th Floor, 11A Building, No.528 Ruiqing Road, Heqing town, Pudong new district, Shanghai China
Jiaozuo Zhongwen Trading Coporation Limited
Contact:+86 0391-3553810
Address:East Renmin Road
VanderArk International Limited
Contact:86-10-82437576
Address:Qing He
Contact:021-61840961 021-61840962
Address:No.157,Zhuguang Rd, Qingpu, Shanghai, China
Huangshi Shennong Chemical Technology Co., Ltd
Contact:+86-714-3072290
Address:Eastern industrial park , Tieshan district , Huangshi city ,Hubei province , China
Doi:10.1021/acs.orglett.8b02481
(2018)Doi:10.1021/om300897w
(2012)Doi:10.1016/j.tet.2012.10.046
(2013)Doi:10.1080/10426507.2015.1128918
(2016)Doi:10.1021/jm3009376
(2012)Doi:10.1021/jm300705j
(2012)