发明名称 |
Production of O,O-dialkyl-S-(benzazimidomethyl)-thiolphosphoric acid esters |
摘要 |
In the reaction of a halomethylbenzazamide with an O,O-di-lower alkyl-thiolphosphoric acid ester to form an ester in accordance with the equation <IMAGE> +TR <IMAGE> <IMAGE> +TR M(+)Halo(-) in which Y is oxygen or sulfur, and M is an alkali metal or ammonium cation, the improvement which comprises starting the reaction at a pH from about 2.5 to 5.5, whereby the desired reaction product is produced in higher yield and assay.
|
申请公布号 |
US4228279(A) |
申请公布日期 |
1980.10.14 |
申请号 |
US19790070478 |
申请日期 |
1979.08.28 |
申请人 |
MOBAY CHEMICAL CORPORATION |
发明人 |
PRASAD, VIDYANATHA A.;VINES, JAMES H. |
分类号 |
C07F9/6521;(IPC1-7):C07D253/08 |
主分类号 |
C07F9/6521 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|