Invention Grant
US08278490B2 Phase transfer catalyst for synthesis of pentaerythritol diphosphites
失效
用于合成季戊四醇二亚磷酸酯的相转移催化剂
- Patent Title: Phase transfer catalyst for synthesis of pentaerythritol diphosphites
- Patent Title (中): 用于合成季戊四醇二亚磷酸酯的相转移催化剂
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Application No.: US12838694Application Date: 2010-07-19
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Publication No.: US08278490B2Publication Date: 2012-10-02
- Inventor: Donald Stevenson , Ping Lue , Jacob M. Lance
- Applicant: Donald Stevenson , Ping Lue , Jacob M. Lance
- Applicant Address: US OH Dover
- Assignee: Dover Chemical Corporation
- Current Assignee: Dover Chemical Corporation
- Current Assignee Address: US OH Dover
- Agency: Hahn Loeser & Parks LLP
- Main IPC: C07C9/576
- IPC: C07C9/576
Abstract:
The present invention pertains to a process for the preparation of pentaerythritol diphosphites via a one-pot, direct esterification of phosphorus trichloride with pentaerithritol, and either an alkylphenol or an arylalkylphenol which functions both as a reactant and as a solvent, with a phase transfer catalyst such as a quaternary ammonium salt.
Public/Granted literature
- US20110021839A1 PHASE TRANSFER CATALYST FOR SYNTHESIS OF PENTAERYTHRITOL DIPHOSPHITES Public/Granted day:2011-01-27
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