N<sub>2</sub> Extrusion and CO Insertion: A Novel Palladium-Catalyzed Carbonylative Transformation of Aryltriazenes
作者:Wanfang Li、Xiao-Feng Wu
DOI:10.1021/acs.orglett.5b00603
日期:2015.4.17
A novel procedure for the replacement of N-2 with CO of aryltriazenes has been developed. Aryltriazenes were converted to the corresponding arylamides catalyzed by 1 mol % of PdCl2/P(o-Tol)(3) under CO pressure. In this process, aryldiazonium salts were generated in the presence of 40 mol % of MeSO3H. Nitrogen was released from the substrates and CO formally inserted. Aryl bromides, iodides, alkynes, and free hydroxyl groups can be tolerated in this transformation.
A convenient masking group for aryl iodides
作者:Jeffrey S. Moore、Edward J. Weinstein、Ziyan Wu
DOI:10.1016/s0040-4039(00)74354-1
日期:1991.11
1-Aryl-3,3-dialkyltriazenes give excellent yields of easily isolated aryl iodides upon treatment with methyl iodide.