Synthesis of Butyraldehyde 1,2-Propanediol Acetal with Aminosulfonic Acid as Catalyst

Butyraldehyde 1,2-propanediol acetal was synthesized from n-butyl aldehyde and 1,2-propylene glycol using aminosulfonic acid as catalyst.The effects of aldehyde alcohol morlar ratio,the amount of aminosulfonic acid,reaction time and water carrying on product yield were studied.The optimal reaction conditions were identified as followed:the amount of butly aldehyde was 0.20mol,n(aldehyde):n(1,2-propanediol)=1∶1.5;the dosage of catalyst was 1g,the volume of cyclohexane was 15mL,the reaction time was 60min,and the yield of butyraldehyde 1,2-propanediol acetal could reach 56.14%.