| 摘要 |
PROBLEM TO BE SOLVED: To provide an industrially advantageous method for producing thiophene-3-carboxaldehyde, capable of producing thiophene-3-carboxaldehyde in a simple method by using readily available raw materials. SOLUTION: This method for producing thiophene-3-carboxaldehyde comprises (A) a cyclic reaction step for reactingα-mercaptoaldehyde with acrolein to provide 2,5-dihydrothiophene-3-carboxaldehyde and (B) an oxidation reacton step for oxidizing the resultant 2,5-dihydrothiophene-3-carboxaldehyde with sulfuryl chloride to provide thiophene-3-carboxaldehyde. Specifically, the above method comprises oxidizing 2,5-dihydrothiophene-3-carboxaldehyde with sulfuryl chloride to provide thiophene-3-carboxaldehyde.
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