Remazol-Catalyzed Hydroperoxyarylation of Styrenes
作者:Ying-Ho Chen、Ming Lee、Yi-Zhen Lin、Dasheng Leow
DOI:10.1002/asia.201500497
日期:2015.8
A mild photocatalytic hydroperoxyarylation of styrenes has been developed, in which a novel photocatalyst, remazol brilliant blue R (RBBR), is employed at low catalytic loading (1 mol %). The operationally easy procedure uses air as the dioxygen source. Simple mono‐substituted styrenes react with aryl hydrazines in moderate‐to‐good yields. RBBR is proposed to act as a photosensitizer for the generation
A mild and practical oxyarylation of alkenes by oxidative radical addition has been developed by using aerobic oxidation of hydrazine compounds. The use of a catalytic amount of potassiumferrocyanidetrihydrate (K4[Fe(CN)6]⋅3 H2O) and water accelerated this radical reaction to give peroxides or alcohols from simple alkenes in good yields. The environmentally friendly and economical radical reactions