Thiophene derivatives and process for preparation thereof
AssigneeSagami Chemical Research Center
InventorsGenichi Tsuchihashi, Katsuyuki Ogura
Life of this patent
Estimating the term…
Abstract
Commercially advantageous processes for preparing thienylacetic acid, furylacetic acid or alkyl esters of these. Novel thiophene or furan derivatives that can be used as starting materials for preparing the above compounds. Processes for preparing these starting materials are also provided.
Claims7
A compound of the formula ##STR10## wherein R' represents a member selected from the group of hydrogen and alkyl and R represents a member selected from the group of (1) alkyl, (2) substituted alkyl wherein the substituent is halogen, hydroxy or alkoxy, (3) phenyl, and (4) substituted phenyl wherein the substituent is alkyl, alkoxy, aryl, nitro or halogen.
Dependencies are inferred from the claim text.