Thiophene derivative and synthetic method thereof

The invention discloses a thiophene derivative of a formula (I) and a synthetic method thereof. Thiobenzamide and an eneyne ester compound are used as raw materials, in the effects of base catalysis, the thiophene derivative of the formula (I) is synthesized. The preparation method has the advantages of mild reaction condition without metal catalysis, cheap catalyst, good yield, good selectivity, environmental friendliness, and the like. Halogen and ester group are contained in the thiophene derivative of the formula (I), in order to facilitate further conversion and synthesize other substances.