Tetrahedron p. 2429 - 2434 (1982)
Update date:2022-08-03
Topics:
Nagendrappa, Gopalpur
The acid-catalysed reactions of medium ring α,β-epoxysilane 1 are described.The epoxide 1 gives exclusively the bicyclic alcohol 2 with boron trifluoride etherate.With aqueous sulphuric acid the products are due to both transannular ring closure, 2, and transannular hydride migration, 3 and 4. trans-Cyclooctene derivatives 3 and 4 are formed by the trans-elimination of trimethylsilanol from the likely intermediate β-hydroxysilanes 10 and 11.The results with methanolic sulphuric acid are similar.It is also noticed that the hydride migration is facilitated by the nucleophilic strength of the medium.
View MoreKunming Biohome Technology Co. Ltd.
website:http://www.biohometech.com/
Contact:86-871-67428869
Address:kunming
Hubei Xiangxi Chemical Industry Co.,Ltd
Contact:+86-710-3454830
Address:No.7, Daqing East Road, Xiangfan City, Hubei Province, China
Contact:+65 9658 0999
Address:26 Sin Ming Lane, Midview City, #05-118, Singapore 573971
website:http://www.maisonchem.com.cn
Contact:0086-311-83833777
Address:Leitou industrial district, xinji, shijiazhuang city, hebei province,
Shanghai Yudiao Chemistry Technology Co.,Ltd
Contact:0086-18964703211
Address:Building NO.5, NO.218,Rongtian Road,ganxiang town,Jinshan District,shanghai,201518,china
Doi:10.1002/jhet.5570190657
(1982)Doi:10.1055/s-2005-862389
(2005)Doi:10.1002/adsc.201500711
(2015)Doi:10.1007/BF00512807
(1983)Doi:10.1016/j.bmcl.2005.05.017
(2005)Doi:10.1039/c5sc03761a
(2016)
