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 catalytic oxidation of naphthalenes was investigated. Hydrogen peroxide (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
摘要 研究了萘的催化氧化。过氧化氢(30% 水溶液)用作氧源,2,2'-二硝基-4,4'-二三氟甲基二苯基二硒化物是氧转移催化剂。未取代的萘酚以几乎定量的产率生产反式-2-羧基肉桂酸。在共轭环上带有取代基的两种萘酚都以良好到极好的产率提供相应的反式-2-羧基肉桂酸。被羧基和羧甲基基团取代的 1,7- 和 2,6- 氢萘醌以令人满意的至极好的产率生产羟基肉桂酸。提出了催化多米诺反应机制。图形概要