A novel synthetic route for the synthesis of 4,6-diaryl-2-methyl-1,3-benzoxazoles
作者:V. Sridharan、S. Muthusubramanian、S. Sivasubramanian
DOI:10.1002/jhet.5570420711
日期:2005.11
A new synthetic route was developed for the synthesis of 4,6-diaryl-2-methyl-l,3-benzoxazoles and their hydrogenated derivatives. The target compounds were obtained via the Neber rearrangement from 3,5-diaryl-2-cyclohexen-l-ones. The formation of the isomers in the dihydro derivatives was explained by the [1,5] sigmatropic shift of hydrogen under thermal condition. DDQ was employed for the dehydrogenation
开发了用于合成4,6-二芳基-2-甲基-1,3-苯并恶唑及其氢化衍生物的新合成路线。通过Neber重排从3,5-二芳基-2-环己烯-1-酮获得目标化合物。二氢衍生物中异构体的形成可以通过热条件下氢的[1,5]σ位移来解释。DDQ用于二氢苯并恶唑的脱氢。