Patent ID: 8871966

Claim:
A method for the synthesis of a compound of formula (I): wherein R and R 1 are individually selected from H, alkyl, arylalkyl, cycloalkyl or cycloalkylalkyl comprising: reacting a coumalate compound of formula (II): optionally in the presence of a solvent, with a captodative alkene of formula (III), (IV) or (V): wherein R 2 is —OR, —SR, halo (F, Cl, Br, I), (R) 2 N, RC(O)— or —O[Si(R a )(R b )(R c )] wherein each of R a , R b or R c are individually selected from (C 1 -C 6 )alkyl, and wherein X and Y are individually R or R 1 , or together are —(CH 2 ) n —, wherein n is 2-3 and —(CH 2 ) n — is optionally substituted with R, so as to yield a compound of formula (I).