Tetrahedron Letters p. 685 - 689 (2000)
Update date:2022-08-17
Topics:
Omura, Kanji
4,4'-Diphenoquinone 1a can be oxygenated to give p-benzoquinone 2a when treated with PbO2 in a solvent containing an aqueous acid. The conversion of 1a is facilitated when the acid is strong and the solvent is of low basicity. The concentration of H2O in the medium also has a profound effect on the rate of conversion of 1a. These facts may indicate that protonation of 1a is the first step in the conversion into 2a. 4,4'-Diphenoquinones 1b and 1c can be analogously converted into p-benzoquinones 2a and 2b, respectively. Benzoquinones 2 can thus be the ultimate products of both oxygenation and dehydrogenative dimerization of phenols 3. (C) 2000 Elsevier Science Ltd.
View MoreContact:21-7631221 15884421033
Address:326 Science and technology,Shanghai,China
Jiangsu Willing Bio-Tech Co ltd
website:http://www.willingbio.com/
Contact:+86 18796909136
Address:No 18 Guoqiao Road
Dayang Chem (Hangzhou) Co.,Ltd.
website:http://www.dycnchem.com
Contact:+86-571-88938639
Address:9/F, Unit 2 Changdi Torch Building, 259# WenSan Road, Xihu District, Hangzhou City 310012, P.R.China
Shanghai Bocimed Pharmaceutical Co., Ltd.
website:http://www.bocimed.com
Contact:+86-21-68861632
Address:Building 1, Lane 647, Songtao Road, Zhangjiang High-Tech Park, Shanghai
Jiangxi Province Bethel Pharmaceutical Co., Ltd.
Contact:+86-795-259 3456 ,+86-15957688008 13566650571
Address:Huangjindui Chemical Park, Shanggao County ,Yichun city,Jiangxi Province
Doi:10.1021/np010152n
(2001)Doi:10.1016/j.jorganchem.2016.04.033
(2016)Doi:10.1002/bkcs.11331
(2017)Doi:10.1021/acscatal.7b01316
(2017)Doi:10.1021/ja408149n
(2013)Doi:10.1039/c6ob01325b
(2016)