Manganese(IV)‐Mediated Hydroperoxyarylation of Alkenes with Aryl Hydrazines and Dioxygen from Air
作者:Stephanie Kindt、Hannelore Jasch、Markus R. Heinrich
DOI:10.1002/chem.201400064
日期:2014.5.19
version of the Meerweinarylation in which the introduction of oxygen is achieved by using dioxygen from the air. In this way, hydroperoxides were obtained from activated as well as non‐activated alkenes by oxidizing aryl hydrazines with manganese dioxide. The best results were obtained with α‐substituted acrylates. Importantly, the aryl hydrazine has to be added slowly to the reaction mixture to allow
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