Invention Grant
- Patent Title: Propanoates and processes for preparing the same
- Patent Title (中): 丙酸酯及其制备方法
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Application No.: US12462447Application Date: 2009-08-04
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Publication No.: US08163464B2Publication Date: 2012-04-24
- Inventor: Michael T. Sheehan , James R. Sounik , George W. Clark, III
- Applicant: Michael T. Sheehan , James R. Sounik , George W. Clark, III
- Applicant Address: US NC Research Triangle Park
- Assignee: Du Pont Electronic Polymers L.P.
- Current Assignee: Du Pont Electronic Polymers L.P.
- Current Assignee Address: US NC Research Triangle Park
- Agent James J. Mullen
- Main IPC: C07C67/31
- IPC: C07C67/31 ; C07C67/327 ; C07C69/734 ; G03F7/004

Abstract:
A process for preparing proponates which comprises the steps of (i) supplying a solution of methanol containing 4-hydroxyphenylmethylcarbinol, (ii) subjecting said solution to an acid catalyzed displacement reaction for a sufficient period of time and under suitable conditions of temperature and pressure to convert substantially all of said carbinol to 4-hydroxyphenylmethylcarbinol methyl ether in solution, (iii) replacing the methanol in said ether containing solution with a second solvent and (iv) reacting the ether containing ethyl lactate solution with a suitable acid catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form said propanoates. New compositions of matter which comprise the propanoates, prepared in the above manner, have application in the electronic chemicals market such as in a photoresist composition.
Public/Granted literature
- US20100047714A1 New propanoates and processes for preparing the same Public/Granted day:2010-02-25
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