STUDY ON THE SYNTHESIS OF A NEW TYPE OF PHOSPHORUS HETEROCYCLIC COMPOUNDS-PYRAZOLO[3,4-d]-1,3,2-DIAZAPHOSPHORIN-6-ONE

作     者：Ru Yu CHEN Jian Wu WANG Institute of Elemento-Organic Chemistry,Nankai University,Tianjin 300071,China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1990年第1卷第1期

页      面：59-60页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

基　　金：Project supported by National Natural Science Foundation of China 

主　　题：DIAZAPHOSPHORIN-6-ONE STUDY ON THE SYNTHESIS OF A NEW TYPE OF PHOSPHORUS HETEROCYCLIC COMPOUNDS-PYRAZOLO[3,4-d 

摘      要：1-substituted-5-benzoylamino-4-pyrazolecarboxamides(2)were prepared by the reaction of 1-substituted pyrazolo[3,4-d]-oxazinone(1) with amines in *** compound 2 was refluxed with excess LiAlH_4 in a mixture of THF and ether,one of the two carbamoyl groups in the molecule 2 was reduced *** the results,1-substituted-5- benzylamino-4-pyrazolecarboxamides(3)were *** 3 reacted with Cl_2PPh-X,or P(NET_2)_3,producing the title compounds(4). The conditions of the reactions were studied.