Process for the preparation of furan compounds

摘要

A carbonyl compound represented by following Formula (1): wherein R¹ represents hydrogen atom or an organic group; and R² represents hydrogen atom or an organic group having a carbon atom at a bonding site with the carbonyl group in Formula (1), wherein R¹ and R² may be combined to form a ring with adjacent two carbon atoms, or an equivalent thereof is reacted with an unsaturated compound represented by following Formula (2): wherein each of R³, R⁴, and R⁵ represents hydrogen atom, a halogen atom, hydroxyl group, or an organic group and wherein R³ and R⁴ may be combined to form a ring with adjacent two carbon atoms, or a precursor thereof, to yield a furan compound represented by following Formula (3): wherein R³' represents R³, R⁵ or hydrogen atom; and R¹, R², R³, R⁴, are R⁵ are as defined above.