Implanting Nitrogen into Hydrocarbon Molecules through CH and CC Bond Cleavages: A Direct Approach to Tetrazoles
作者:Feng Chen、Chong Qin、Yuxin Cui、Ning Jiao
DOI:10.1002/anie.201105505
日期:2011.11.25
From simple beginnings: A novel Cu‐promoted direct incorporation of nitrogen into simple hydrocarbon molecules under mild and neutral reaction conditions is described. 1,5‐Disubstituted tetrazoles are efficiently constructed by two CH and one CCbondcleavages (see scheme; TMS=trimethylsilyl). This protocol provides a new and unique strategy to functionalize simple and readily available hydrocarbon
Efficient Palladium-Catalyzed Oxidative Indolation of Allylic Compounds with DDQ<i>via sp</i><sup>3</sup>CH Bond Activation and Carbon-Carbon Bond Formation Under Mild Conditions
作者:Hanjie Mo、Weiliang Bao
DOI:10.1002/adsc.200900561
日期:2009.11
An efficient oxidative cross-coupling reaction between 1,3-diarylpropenes and indoles in the presence of palladium chloride was achieved with 2,3-dichloro-5,6-dicyanoquinone (DDQ) as oxidant. The reaction afforded 1,3-diphenylallylindoles in moderate to high yields under mild conditions, thus providing a novel methodology to synthesize the respective products.