Oxofunctionalized<i>Trans</i>-2-carboxycinnamic Acids by Catalytic Domino Oxidation of Naphthols and Hydronaphthoquinones
作者:Mirosław Giurg、Hubert Muchalski、Ewa Kowal
DOI:10.1080/00397911.2011.561945
日期:2012.9
Abstract The catalyticoxidation of naphthalenes was investigated. Hydrogenperoxide (30% aqueous) was used as an oxygen source, and 2,2’-dinitro-4,4’-ditrifluoromethyldiphenyl diselenide was the oxygen-transfer catalyst. Unsubstituted naphthols produce trans-2-carboxycinnamic acid in nearly quantitative yields. Both naphthols bearing substituents on the conjugated ring deliver corresponding trans-2-carboxycinnamic