Bulletin of the Chemical Society of Japan p. 1902 - 1907 (1980)
Update date:2022-08-11
Topics:
Matsushima, Ryoka
Ichikawa, Yoshinori
Kuwabara, Katsuyuki
Ultraviolet irradiation of aqueous lactic, glycolic, or 2-hydroxybutanoic acid in the presence of copper (II) leads to photoredox reaction to give corresponding α-keto acid, aldehyde with evolution of carbon dioxide, and the precipitate of copper (I).The mole ratio of the carbonyl products to the consumption of copper(II) is close to 0.5.Oxidative decarboxylation dominates at pH above 1 while the formation of α-keto acids favors at lower pH.The formation of α-keto acids is selectivity suppressed by the addition of free radical scavengers.Free radical oxidations of the acids with bromine atom or benzoyl radicals give exclusively α-keto acids.The reaction mechanism has been discussed.
View MoreXi'an HO-SHINE Bio-Technology Co., Ltd
Contact:+86 (29) 8248-5435/18292020086
Address:No.6 Shiyuan Road Xian City Shaanxi Province, 710048 China
Contact:86-511-85210668 0511-85210668, 85210818, 85210898
Address:Yihai Garden E-902,NO.99 Daxi RD., Zhenjiang Jiiangsu ,China
Beijing Zhongshuo Pharmaceutical T & D Co.,Ltd
Contact:0086-10-64430626
Address:ea No 16, HEPINGLI,DONGCHENG DISTRICT,BEIJING,P.R.CHINA.
Hubei Danao Pharmaceutical Co.,Ltd.
website:http://www.danaopharm.com
Contact:+86-719-5251167
Address:Fandan Road,Danjiangkou,Hubei
Chengdu Boon Stream Chemical Industry Co.,Ltd.
Contact:+86-28-83156758
Address:No.859,Dongzikou Road,Jinniu District,Chengdu,Sichuan,P.R.China
Doi:10.1021/ac00094a017
(1994)Doi:10.1016/j.polymer.2009.11.055
(2010)Doi:10.1021/ol1005104
(2010)Doi:10.1016/j.ijpharm.2018.04.022
(2018)Doi:10.1002/oms.1210230907
(1988)Doi:10.1016/S0040-4020(01)82563-1
(1967)