Tetrahedron Letters p. 615 - 618 (1997)
Update date:2022-08-03
Topics:
Kitagawa, Osamu
Fujita, Masao
Li, Hua
Taguchi, Takeo
A new and general method of iodine-mediated cyclization reactions of unsaturated carbamates, ureas and amides which gives N-cyclized products as a single regio-isomer was achieved. The present reaction proceeds in good yield through regio-control of an ambident nucleophile by LiAl(Ot-Bu)4, and the regio-control (N-attack vs O-attack) was also found to be remarkably affected by the additive employed.
View Morewebsite:http://www.sigmaaldrich.com
Contact:800 558-9160
Address:Industriestrasse 25CH-9471 Buchs SGSwitzerland
Kunming Biohome Technology Co. Ltd.
website:http://www.biohometech.com/
Contact:86-871-67428869
Address:kunming
Chengdu Biopurify Phytochemicals Ltd.
website:http://www.phytopurify.com
Contact:+86-28-82633397
Address:2F,No.11 Building,No.388 Rongtaidadao CNSTP,Wenjiang Zone,Chengdu,Sichuan, China
Laizhou City Laiyu Chemical CO.,Ltd
Contact:+86-535-2719337/2719339
Address:Chenggang road zhuyou laizhou City Shangdong China
Shandong Yubin Chemical CO.,LTD
website:http://www.yukaichem.com/en.html
Contact:+86-536-8865336
Address:binhai economic development zone，262737 shangdong，china
Doi:10.1016/0040-4020(96)00468-1
(1996)Doi:10.1016/S0040-4020(97)00005-7
(1997)Doi:10.1016/j.poly.2010.10.029
(2011)Doi:10.1021/ja01465a021
(1961)Doi:10.1016/S0040-4020(97)00007-0
(1997)Doi:10.1039/j29680000338
(1968)
