Journal of Organometallic Chemistry p. 29 - 38 (1989)
Update date:2022-08-17
Topics:
Kamienska-Trela, K.
Kania, L.
Sitkowski, J.
Bednarek, E.
Some trans- and cis-1-trialkylsilyl-1,2-dihalogenoethenes have been synthesized and their 13C and 1H NMR spectra recorded.The compounds studied readily undergo reversible cis-trans isomerization, the cis isomers being thermodynamically more stable than the trans isomers.The value of 3J(SiHα)trans is about twice as large as that of 3J(SiHα)cis, and the values of 2J(CβHα)trans is about one-tenth that of 2J(CβHα)cis and this allows ready assignment of the configuration.The one-bond spin-spin coupling constants between the ethylenic carbons depend on the electronegativities of the substituents, trans 1J(C=C) in most cases being larger than 1J(C=C)cis.
View MoreContact:+86-571-87010026
Address:202, Zhenhua Road,
Contact:86-28-66070694 13350079802
Address:Nanyan Road,Tianfu Road sichuan ,china
Changde Yungang Biotechnology Co., Ltd
website:http://www.cdyg.com
Contact:+86-736-7391178
Address:Qiaonan Industrial Park, Changde City, Hunan Province
taicang liyuan chemical co,.ltd
website:http://www.tcliyuanchem.com/productse.php
Contact:86-512-53539583
Address:Room 804,Huaxu Building,No.95,Renmin South Road,Taicang city,Jiangsu Province,China
Suqian Ruixing Chemical Co., Ltd.
Contact:+86-527-80805666(总机);84836008(销售)
Address:3 Jingsilu, Zone north, Hubin Xincheng Development Park, Suqian, China
Doi:10.1002/asia.201300780
(2013)Doi:10.1007/s12039-013-0523-6
(2013)Doi:10.1039/c6ra06050a
(2016)Doi:10.1039/c8nj00937f
(2018)Doi:10.1016/j.tet.2007.06.048
(2007)Doi:10.1002/anie.201404133
(2014)