Chemistry of Heterocyclic Compounds p. 1084 - 1090 (1991)
Update date:2022-09-26
Topics:
Shestopalov, A. M.
Sharanin, Yu. A.
Nesterov, V. N.
Khoroshilov, G. E.
Shklover, V. E.
et al.
The interaction of substituted trans-1,1-dicyano-4-phenyl-1,3-butadienes with pyridinium ylides proceeds through the path of 4s + ?2s>-dipolar cycloaddition, highly regioselective and stereoselective, with formation of substituted 1-(2,2-dicyanovinyl)-2-phenyl-6-cyano-1,2-trans-2,3-trans-1,9-trans-1,2,3,9-tetrahydroindolizines.The stereoselectivity of these reactions is due to endo-addition of molecules of trans-1,3-butadienes to the anti form of pyridinium ylides; it is confirmed by correlation analysis of the data from double PMR, mathematical calculations of torsion angles, and X-ray structural studies of the substituted tetrahydroindolizines.
View MoreKunshan Yalong Trading Co,.Ltd
Contact:86-512-57621185
Address:805-807 Room Hongqiao Mansion ,1088 West Qianjin Road, Kunshan, Jiangsu,China
Puyang Huicheng Electronic Material Co., Ltd
website:http://huichengchem.weba.testwebsite.cn/index_en.html
Contact:+86-393-8910800
Address:West Section Shengli Road, Puyang457000, China
Shanghai Dynamic Industrial Co.,Ltd.
website:http://www.shdynamic.com
Contact:86-021 3392 6680
Address:Room 805 Information Tower, No.1403 Minsheng Road, Pudong New Area, Shanghai 200135, P. R. China
Nanjing distinctions Medical Technology Co., Ltd.(expird)
Contact:+86-15996203785 13914714059
Address:nanjing,jiangsu , China
LIAOYANG WANRONG CHEMICALS COMPANY LIMITED
Contact:86-419-2390789
Address:XINLI VILLAGE , DONG NINGWEI COUNTY,TAIZIHE DISTRICT, LIAOYANG , LIAONING
Doi:10.1016/S0040-4039(00)97309-X
(1990)Doi:10.1007/BF00756437
(1990)Doi:10.1246/bcsj.63.2233
(1990)Doi:10.1016/j.saa.2011.03.039
(2011)Doi:10.1002/chem.201800202
(2018)Doi:10.1016/j.tetlet.2011.04.065
(2011)