微波辐射相转移催化合成α-呋喃丙烯酸

Synthesis of Furanacrylic Acid Using PEG1000 as a Catalyst under Microwave Irradiation

以糠醛和乙酸酐为原料 ,聚乙二醇为相转移催化剂 ,在微波辐射下合成了α 呋喃丙烯酸。较适宜的反应条件为 :糠醛 10mL( 12 2mmol) ,V(糠醛 )∶V(乙酸酐 ) =1∶2 ,n(糠醛 )∶n(K2 CO3 ) =1∶0 .5 5 ,PEG10 0 0用量为糠醛质量的 4 .3% ,微波辐射功率 2 6 0W ,辐射时间 11min ,产率 72 .3%。

α-Furanacrylic acid was synthesized from furaldehyde and acetic anhydride using PEG1000 as a catalyst under microwave irradiation. The appropriate reaction conditions were as follows: furaldehyde was 10mL(122mmol), V(furaldehyde) ∶V(acetic anhydride)=1 ∶2,n(furaldehyde) ∶n(K 2CO 3)=1 ∶ 0.55 , PEG1000 was 4.3% of the furaldehyde mass as the best phase transfer catalyst, the power of microwave was 260W, the irradiation time was 11min, the yield was up to 72.3%.