Journal of Organic Chemistry p. 73 - 93 (2019)
Update date:2022-08-15
Topics:
Mallick, Sudesh
Maddala, Sudhakar
Kollimalayan, Kalidass
Venkatakrishnan, Parthasarathy
Oxidative C-C coupling of carbazoles possessing various substituents is demonstrated in the presence of organic (metal-free) recyclable oxidants, such as DDQ or CA/H+, for accessing bicarbazole regioisomers. Differently substituted carbazoles are examined to showcase regioselective discrimination (3,3′-versus 1,3′-bicarbazoles) and preferences based on sterics and electronics in oxidative coupling. Finally, a mechanism that involves the carbazole radical cation has been traced (evidenced) and proposed on the basis of the UV-vis-NIR absorption and EPR spectroscopy results. This study underlines the strategic chemical preparation of a series of bicarbazoles in an efficient manner.
View MoreContact:86-898-65311214
Address:Room 102, BLDG. 68 Jiangnan City, No. 66 Heping Road,Haikou, Hainan, China
Chuzhou Baiao Biologhy S&T Co., Ltd.
Contact:+86-25-83212599;+86-25-83212699 13705185959
Address:Room 905, Tianzheng International Platza, No.399, Zhongyang Road ,Nanjing, Jiangsu Province, China
website:http://www.simagchem.com
Contact:+86-592-2680277
Address:21/F Hualong Office Building,No.6 Hubin East Road, Xiamen,China
Yancheng Creator Chemical Co., Ltd
Contact:0086-515-88710008 88710068 88710858 88710868
Address:No.21 Renming Road, Longgang Town, Yandu County,Yancheng City
Laohekou Jinghong Chemical Co.,Ltd
Contact:+86-0710-3702747
Address:163.East,Huagong Road,Laohekou
Doi:10.1007/BF01430669
(1996)Doi:10.1016/S0040-4039(01)00399-9
(2001)Doi:10.1016/S0223-5234(97)87542-3
(1997)Doi:10.1021/jo962358c
(1997)Doi:10.1016/0040-4039(95)00720-W
(1995)Doi:10.1016/S0022-328X(96)06517-5
(1997)