Process for the preparation of furan compounds

Abstract

A carbonyl compound represented by following Formula (1):

Description

Claims

1. A process for the preparation of furan compounds, the process comprising the step of: carrying out a reaction of a carbonyl compound represented by following Formula (1):

2. The process according to claim 1, wherein the reaction is carried out in the presence of a catalytic palladium compound (A).

3. The process according to claim 2, wherein the reaction is carried out in the presence of a promoter (B) in addition to the catalytic palladium compound (A), and wherein the promoter (B) comprises: a heteropolyacid or a salt thereof (B1); ora mixture of oxoacids and/or salts thereof (B2) containing, as a whole, an element selected from phosphorus and silicon and at least one element selected from vanadium, molybdenum, and tungsten.

4. The process according to claim 3, wherein the heteropolyacid or a salt thereof (B1) comprises an element selected from phosphorus and silicon and at least one element selected from vanadium, molybdenum, and tungsten as constitutional elements.

5. The process according to one of claims 3 and 4, wherein the heteropolyacid or a salt thereof (B1) comprises a phosphovanadomolybdic acid or phosphomolybdic acid represented by following Formula: A3+n[PMo12−nVnO40]wherein “A” represents at least one selected from the group consisting of hydrogen atom, NH4, alkali metals, and alkaline earth metals; and “n” represents an integer of 0 to 10, or a salt of them.

6. The process according to claim 2, wherein the reaction is carried out in the presence of a Lewis acid (C), in addition to the catalytic palladium compound (A).

7. The process according to claim 1, wherein R4 in Formula (2) is an electron-withdrawing group.