Tetrahedron p. 8295 - 8308 (1992)
Update date:2022-08-05
Topics:
Pandey
Kumaraswamy
Yella Reddy
Efficient, mild and direct route for regiospecific iminium cation is developed by sequential two electron oxidation of several N-alkylated tertiary amines by photoinduced electron transfer processes. The regiospecificity of iminium cation arises from the deprotonation step of amine radical cation to generate α-amino radical which depends on the stereoelectronic factor subject to kinetic acidity of amine radical cation. Iminium cation is efficiently trapped in situ by internal nucleophiles to give cyclic compounds 14-18 and 22a-c. Stereoselective synthesis of cis α,α'-dialkylated piperidines and pyrrolidines 30a-c is achieved by nucleophilic opening of tetrahydro-1,3-oxazines 22a-c.
View MoreTianjin Crest Pharmaceutical R&D Co., Ltd. (Tianjin Yao Technology Development Co., Ltd.)(expird)
Contact:+86-22-66211386
Address:Building B5-405, No, 80 4th Avenue, TEDA, Tianjin, China P.R. 300457
Contact:+86-533-3112891
Address:zibo
Contact:0833-5590788/5590338/5590055
Address:Victory in the town of Red Star Village,Mount Emei City,industrial concentration area storage processing logistics parkpark
Ceresking Ecology & Technology co.,ltd
Contact:86 22 66218397
Address:Room 1613, Zheshang Mansion, No. 1988, Yingbin Avenue, Binhai New District, Tianjin,China.
Hunan Shineway Enterprise Co., Ltd.
Contact:+86-731-86303875
Address:118, Huanghua International Airport Road, Huanghua Town, Changsha, Hunan 410137, China
Doi:10.1002/jhet.784
(2012)Doi:10.1515/hc-2013-0035
(2013)Doi:10.1039/d0ob02546a
(2021)Doi:10.1016/S0040-4020(02)00133-3
(2002)Doi:10.1021/jo00029a020
(1992)Doi:10.1021/jp030383y
(2003)