Phosphonation of arenes with dialkyl phosphites catalyzed by Mn(II)/CO(II)/O2 redox couple

被引:153
作者
Kagayama, T [1 ]
Nakano, A [1 ]
Sakaguchi, S [1 ]
Ishii, Y [1 ]
机构
[1] Kansai Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5648680, Japan
关键词
D O I
10.1021/ol052406s
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Arylphosphonates were first synthesized through a catalytic phosphonation of various arenes with dialkyl phosphites under the influence of an Mn(OAc)(2)/Co(OA(C))(2)/O-2 redox couple. For instance, the reaction of benzene with diethyl phosphite in the presence of Mn(OAc)(2) (5 mol %) and Co(OAc)(2) (1 mol %) under a mixed gas of O-2 (0.5 atm) and N-2 (0.5 atm) at 45 degrees C led to diethyl phenylphosphonate in 81% selectivity at 62% conversion. This is the first successful phosphonation of benzene with dialkyl phosphites through a catalytic radical process.
引用
收藏
页码:407 / 409
页数:3
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