Tetrahedron p. 1179 - 1182 (1980)
Update date:2022-08-03
Topics:
Welch, Steven C.
Gruber, John M.
Rao, Prakasa A. S. C.
Epoxidation of retinol (vitamin A alcohol, 1) with freshly prepared and standardized mono-perphtalic acid in ether affords a product which Karrer named "chromogen 574" in 1945.Repetition of this peracid oxidation of retinol (1) with several peracids (m-PPA, m-CPBA, or CH3CO3H) with or without a buffer (NaHCO3 or Na2HPO4) produces dihydropyran alcohol 4 as characterised by spectroscopy and subsequent chemical transformations.Thus the structures proposed for "chromogen 574" by Karrer in 1945-47 and Troitskii in 1948 are now revised to correspond to cyclic alkohol 4.
View MoreAnhui Xinyuan Technology Co.,Ltd
website:http://www.ahxytech.com/
Contact:0086-559-3515800
Address:Huangshan City of Anhui Province Huizhou Huizhou District Road, 21-9
Jintan City Mego Chemical Co., Ltd
Contact:+86-0519-82814387
Address:23# Dengguan Town, Jintan, Jiangsu Province, China
Shanghai Korey Pharm Co.,Ltd.(expird)
Contact:021-61840961 021-61840962
Address:No.157,Zhuguang Rd, Qingpu, Shanghai, China
Zhejiang Hoshine Silicon Industry Co., Ltd.
Contact:86-573-89179966
Address:Zhapu Town, Pinghu City, Zhejiang, China
Melone Pharmaceutical Co., ltd
Contact:+86-411 82593920, 82593631
Address:No 232, JInma Roda, Development Zone, Dalian, China
Doi:10.1021/jo01279a095
(1967)Doi:10.1021/ja040065s
(2004)Doi:10.1021/jo00111a044
(1995)Doi:10.1016/S0031-9422(00)86148-8
(1965)Doi:10.1039/c3cc49313j
(2014)Doi:10.1016/0040-4039(80)80197-3
(1980)
