Cyclization of C-phosphorylated (PIII) arylformamidines to 3H-1,3-benzazaphospholes
作者:Anatolyi Marchenko、Heorgii Koidan、Anastasiya Hurieva、Anatolyi Merkulov、Aleksandr Pinchuk、Aleksandr Yurchenko、Alexander B. Rozhenko、Peter G. Jones、Holger Thönnessen、Aleksandr Kostyuk
DOI:10.1016/j.tet.2011.08.007
日期:2011.10
A synthesis of 3H-1,3-benzazaphospholes starting from C-phosphorylated P(III) arylformamidines has been developed. Electron-donating substituents were found to enhance markedly the rate of the cyclization, with substituents at the meta position having the greatest effect. A plausible mechanism of the cyclization was proposed based on DFT calculations.
已经开发了从C-磷酸化的P(III)芳基甲am开始的3 H -1,3-苯并氮杂苯的合成。发现供电子性取代基显着提高环化速率,其中间位取代基具有最大作用。基于DFT计算,提出了可行的环化机理。