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US 5,493,025 AGranted
Process for preparation of fluorinated beta-keto ester
AssigneeRohm and Haas Company
InventorLois M. Bryman
Life of this patent
Estimating the term…
Abstract
A polyfluoro beta-keto ester is prepared by reacting a polyfluoro acid anhydride or a polyfluorocarboxylic acid chloride with a carboxylic acid chloride in the presence of a tertiary amine.
Claims7
In a process for making a 2-arylpyrimidine by reacting a N-alkylamidine with a beta-keto ester, the improvement comprising preparing the beta-keto ester by reacting a polyfluorocarboxylic acid chloride conforming to the formula;
- ##STR3## wherein R.sub.f is selected from a polyfluoroalkyl, is reacted with a carboxylic acid chloride in the presence of a tertiary amine.
Dependencies are inferred from the claim text.