CuCl_2掺杂聚苯胺催化合成苯甲醛1,2-丙二醇缩醛

Catalytic synthesis of benzaldehyde 1,2-propylene acetalization by the catalyst of polyaniline doped with copper chloride

A new envirmentally-friendly catalyst,PAn-CuCl2 was prepared.Benzaldehyde 1,2-propylene acetalization was synthesized from benzaldehyde and 1,2-propylene alcohol in the presence of polyaniline doped with copper chloride.Factors influencing the product yield were discussed and the optimum conditions were found.Experimental result showed that polyaniline doped with copper chloride is an excellent catalyst.With n（benzaldehyde）/n（1,2-propylene）=1/1.5,w（polyaniline doped with copper chloride）=0.98%,cyclohexane 14mL and reaction time 2.0 h,yield of benzaldehyde 1,2-propylene acetalization can reach 91%.

A new envirmentally -friendly catalyst, PAn -CuCl2 was prepared. Benzaldehyde 1,2 -propylene aeetalization was synthesized from benzaldehyde and 1,2 -propylene alcohol in the presence of polyaniline doped with copper chloride. Factors influencing the product yield were discussed and the optimum conditions were found. Experimental result showed that polyaniline doped with copper chloride is an excellent catalyst. With n（ benzaldehyde）/n（ 1,2 - propylene） = 1/1. 5 ,w（ polyaniline doped with copper chloride） = 0. 98%, cyclohexane 14mL and reaction time 2.0 h, yield of benzaldehyde 1,2 - propylene acetalization can reach 91%.