作者:Yoshiki Okamoto、Narimasa Iwamoto、Susumu Toki、Setsuo Takamuku
DOI:10.1246/bcsj.60.277
日期:1987.1
Whereas in an aqueous solution 1,2-bis(4-nitrophenyl)ethane was produced as a main product, in an alcohol solution only p-nitrotoluene was produced. This photolysis may proceed via intramolecular electron transfer from PO32− group to nitro aromatic moiety to form an excited state, which undergoes C–P bond cleavage to give p-nitrobenzyl anion and monomeric metaphosphate anion as intermediates. The C–P
在紫外线照射下,对硝基苄基膦酸根离子的 C-P 键在醇水溶液中以约 0.7 的量子产率裂解,得到 1,2-双(4-硝基苯基)乙烷、对硝基甲苯、正磷酸盐和烷基磷酸二氢盐。在水溶液中,主要产物是 1,2-双(4-硝基苯基)乙烷,而在醇溶液中仅产生对硝基甲苯。这种光解可以通过从 PO32− 基团到硝基芳族部分的分子内电子转移进行,形成激发态,经过 C-P 键断裂,得到对硝基苄基阴离子和单体偏磷酸根阴离子作为中间体。对硝基苄基膦酸根离子的 C-P 键断裂比邻-和间-硝基苄基膦酸根离子更容易发生。