Highly Regioselective Iodination of N-Phenylureas with Iodine/Trichloroisocyanuric Acid
作者:Lúcia de Aguiar、Marcio de Mattos、Carlos Sanabria、Mariana do Casal、Raphael de Souza
DOI:10.1055/s-0036-1588370
日期:——
regioselective iodination of N-phenylureas was developed using iodine/trichloroisocyanuric acid in acetonitrile at room temperature. This protocol proved to be effective on a broad range of substituted N-phenylureas, forming the p-iodinated compounds in 65–96% yield under mild and neutral conditions. An efficient regioselective iodination of N-phenylureas was developed using iodine/trichloroisocyanuric
3-(halophenyl)-1, 1-dialkyl ureas and weed control compositions and methods
申请人:DU PONT
公开号:US02655444A1
公开(公告)日:1953-10-13
Efficient Direct Halogenation of Unsymmetrical N-Benzyl- and N-Phenylureas with Trihaloisocyanuric Acids
作者:Lúcia de Aguiar、Marcio de Mattos、Carlos Sanabria、Bruno Costa、Gil Viana
DOI:10.1055/s-0036-1589149
日期:2018.3
halogenation of N-phenylureas was developed using trihaloisocyanuric acids in acetonitrile at room temperature. This protocol proved to be effective for the construction of N-phenylureas with different patterns of substitution. Additionally, less reactive N-benzylureas were halogenated in the presence of a mixture of trifluoroacetic acid and acetonitrile at room temperature. A simple and efficient methodology