PROCESSES FOR PRODUCTION OF CYCLIC ALKYLENE PHOSPHOROHALIDITE AND CYCLIC PHOSPHORIC ACID ESTER
申请人:Hamada Toshiya
公开号:US20120264965A1
公开(公告)日:2012-10-18
A process for producing a cyclic alkylene phosphorohalidite, which comprises reacting a specific phosphorus trihalide with a specific alkylene glycol compound under conditions where the phosphorus trihalide is present in an excess amount relative to the amount of the alkylene glycol compound in the reaction system to order to obtain the cyclic alkylene phosphorohalidite by reacting the alkylene glycol compound with the phosphorus trihalide; and a process for producing a cyclic phosphoric acid ester by using the obtained cyclic alkylene phosphorohalidite as a raw material.
Improved process for the preparation of phosphites
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0902032A1
公开(公告)日:1999-03-17
A process for producing organo-phosphites is provided. The process involves heating a di-substituted phosphorohalidite, a phenolic compound, and a polymeric amine. An especially useful polymeric amine is N,N,N'N'-tetraethyl-1,3-propanediamine. Conversions is excess of about 97% are obtained.