Role of electron transfer of quinones in hydroxylation of phenol

Authors
Men, Y Liu, Y Li, J Yang, XG Wu, Y
Citation
Y. Men et al., Role of electron transfer of quinones in hydroxylation of phenol, CHEM J CH U, 22(5), 2001, pp. 839-840
Citations number
8
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
02510790 → ACNP
Volume
22
Issue
5
Year of publication
2001
Pages
839 - 840
Database
ISI
SICI code
0251-0790(200105)22:5<839:ROETOQ>2.0.ZU;2-Q
Abstract
It was found that at neutral pH the hydroxylation reaction rate of phenol w as accelerated with an increase of the amounts of 1,4-quinone (1,4-BQ), Thi s acceleration was ascribed to the formation of semiquinone from 1,4-BQ. Th e semiquinone and 1,4-BQ were suggested to play a role of actual oxidant (e lectron transfer) in the catalytic cycle. With further reaction, most 1,4-B Q was converted into 1,4-hydroquinone (HQ) and the corresponding mechanism was proposed.