Enhanced reactivity in OH/NH/? polyfunctional systems through coupled proton/electron transfer in the excited state: the photocyclisation of 2-allyl-3-aminophenol
The object of the invention is an agent for the oxidative dyeing keratin fibers, wherein it contains (a) at least one 4,5-diaminopyrazole derivative of Formulas (I), (II) or (III) or its salt with organic or inorganic acids
1
as well as
(b) at least one resorcinol derivative of the general Formula (IV)
2
Enhanced reactivity in OH/NH/? polyfunctional systems through coupled proton/electron transfer in the excited state: the photocyclisation of 2-allyl-3-aminophenol
作者:Edgar A. Leo、Rosa Tormos、Miguel A. Miranda
DOI:10.1039/b416625f
日期:——
The photocyclisation rate of 2-allyl-3-(or 5-)aminophenols (1, 4 and 8) is dramatically enhanced, when compared with reference compounds, as a consequence of a coupled proton/electron transfer process.