Chinese Journal of Organic Chemistry >
Synthesis of O,O-Dialkyl-Se-aryl Phosphoroselenoates Catalyzed by Cesium Hydroxide
Received date: 2013-04-17
Revised date: 2013-04-28
Online published: 2013-05-13
Supported by
Project supported by the National Natural Science Foundation of China (Nos. 21273068, 21172061, J1210040, J1103312)
In the presence of cesium hydroxide, using dimethyl sulfoxide (DMSO) as solvent, dialkyl phosphites reacted with diaryldiselenides at room temperature to afford the corresponding Se-aryl phosphoroselenoates in high yields. The reaction mechanism is that dialkyl phosphites reacted with cesium hydroxide to give (RO)2P-(O)Cs+, which underwent nucleophilic attack on ArSeSeAr to give product Se-aryl phosphoroselenoates and ArSe-Cs+, the latter was oxidized in the presence of water to form diaryldiselenides and catalyst cesium hydroxide. The method could provide a new and expedient way for the Se-aryl phosphoroselenoates.
Li Yuanyuan , Chen Sihai , Su Liu , Li Jianhua , Xu Xinhua . Synthesis of O,O-Dialkyl-Se-aryl Phosphoroselenoates Catalyzed by Cesium Hydroxide[J]. Chinese Journal of Organic Chemistry, 2013 , 33(9) : 1999 -2003 . DOI: 10.6023/cjoc201304024
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