Diesters of phosphoric acid 2,5-dioxo-4,4-diphenyl-imidazolidin-1-ylmethyl ester
申请人:Warner-Lambert Company
公开号:US06255492B1
公开(公告)日:2001-07-03
An improved process for the preparation of a diester of phosphoric acid 2,5-dioxo-4,4-diphenyl-imidazolidin-1-ylmethyl ester is described where an alkali metal phosphate is treated with a 3-(chloromethyl)- or 3-(bromomethyl)-5,5-diphenyl-2,4-imidazolidinedione to afford the desired product, as well as valuable intermediates used in the process.
Diazoethenes: their attempted synthesis from aldehydes and aromatic ketones by way of the Horner-Emmons modification of the Wittig reaction. A facile synthesis of alkynes
作者:J. C. Gilbert、U. Weerasooriya
DOI:10.1021/jo00349a007
日期:1982.5
Preparation of Mixed Phosphoric Acid Triesters using Sulphonium Salts
作者:B. Badet、M. Julia、C. Rolando
DOI:10.1055/s-1982-29784
日期:——
Preparation of anhydrous organic acid salts
申请人:E. I. Du Pont de Nemours and Company
公开号:US04723016A1
公开(公告)日:1988-02-02
One-step process for preparing anhydrous, organic acid alkali or alkaline earth metal salts by contacting and reacting an organic or polymeric acid fluoride, anhydride or ester and an organic alkali or alkaline earth metal silanolate.
Process for the synthesis of diesters of phosphoric acid
申请人:Warner-Lambert Company
公开号:US06022975A1
公开(公告)日:2000-02-08
An improved process for the preparation of a diester of phosphoric acid 2,5-dioxo-4, 4-diphenyl-imidazolidin-1-ylmethyl ester is described where an alkali metal phosphate is treated with a 3-(chloromethyl)- or 3-(bromomethyl)-5,5-diphenyl-2,4-imidazolidinedione to afford the desired product, as well as valuable intermediates used in the process.