The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 1985
Filed:
Jun. 29, 1984
Applicant:
Inventors:
Yves Le Bigot, St-Martin de Londres, FR;
Paul Audoye, Tarascon-sur-Ariege, FR;
Michel Delmas, Deyme, FR;
Antoine Gaset, Toulouse, FR;
Assignee:
Agrifurane, S.A., Bon Encontre, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549473 ; 549499 ;
Abstract
A process for the preparation of an ester of furan of the formula ##STR1## or ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen or hydrocarbon radicals containing at least one heteroatom comprising subjecting an ester of the formula ##STR3## wherein R.sub.5 is hydrogen or a hydrocarbon radical containing at least one heteroatom to a transesterification reaction with a furan alcohol of the formula ##STR4## in the presence of a catalyst comprising an alkaline carbonate other than lithium carbonate at a temperature of 0.degree. C. to 90.degree. C.