An efficient and green approach for the synthesis of vinyl aryl ethers in the presence of guanidine hydrochloride

Authors: SEYED MOHAMMAD VAHDAT, ROBABEH BAHARFAR

Abstract: A stereoselective procedure for vinyl aryl ether bond formation by direct coupling of dialkyl acetylenedicarboxylates and substituted phenols or naphthols under mild reaction conditions has been developed. Using guanidine hydrochloride as a new catalyst and water-acetone as green solvent, dialkyl acetylenedicarboxylates were reacted with substituted phenols or naphthols in room temperature to produce vinyl aryl ethers in good to excellent yields.

Keywords: Guanidine hydrochloride, dialkyl acetylenedicarboxylates, vinyl aryl ether, O-vinylation, water solvent

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