ポリハロゲン化ベンジルトリメチルアンモニウムを用いるハロゲン化, ならびに酸化

概要

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Our recent studies on effective halogenation and oxidation using benzyltrimethylammonium polyhalides, stable solids, are described. Those involve electrophilic halogen-substitution (bromination, iodination, and chlorination) of aromatic compounds such as phenols, aromatic amines, aromatic ethers, acetanilides, arenes, and thiophenes, α-halogenation of arenes and acetophenones, and also halogen-addition of alkenes by the use of benzyltrimethylammonium tribromide (BTMA Br3), benzyltrimethylammonium dichloroiodate (BTMA ICl2), and benzyltrimethylammonium tetrachloroiodate (BTMA ICl4). Furthermore, oxidation of alcohols, ethers, 1, 4-benzenediols, hindered phenols, primary amines and hydrazo compounds, sulfides, and thiols, haloform reaction of methylketones, N-bromination of amides, Hofmann degradation of amides, and preparation of acylureas and carbamates by the use of BTMA Br3 are presented.
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