Oxidation of aromatic amines with chromyl chloride-I
作者:C. Nallaiah、J.A. Strickson
DOI:10.1016/s0040-4020(01)87565-7
日期:1986.1
The oxidation of aromaticprimaryamines with chromyl chloride in carbon tetrachloride or chloroform, results in the formation of intermediate solid adducts (Etard adducts) which, on hydrolysis, give azobenzenes(1), 1,4-benzoquinones(2),anilino-1,4-benzoquinones(3), 1,4-benzoquinone anils(4)and anilino-1,4-benzoquinone anils (5) in yields which depend on the position, nature and degree of substitution
Fast Synthesis of Hydrazine and Azo Derivatives by Oxidation of Rare-Earth-Metal−Nitrogen Bonds
作者:Lijun Zhang、Jing Xia、Qinghai Li、Xihong Li、Shaowu Wang
DOI:10.1021/om1009928
日期:2011.2.14
A novel N−N coupling reaction was developed through the oxidation of rare-earth-metal−nitrogen bonds produced by treatment of the easily available rare-earth-metal amides [(Me3Si)2N]3RE(μ-Cl)Li(THF)3 with aromatic primary or secondary amines. The reaction provides the symmetrical or unsymmetrical azo compounds and hydrazinederivatives in good to high yields within a very short time under mild conditions