用NiB/SiO_2非晶态合金催化氢化甲基铃兰醛

以NiB/SiO2非晶态合金为催化剂,2,2-二甲基-3-(3-甲基苯基)丙醛(甲基铃兰醛)为原料,催化加氢合成了2,2-二甲基-3-(3-甲基苯基)丙醇(甲基铃兰醇)。结果表明,NiB/SiO2非晶态合金催化剂对该反应具有较高的催化活性,加氢反应条件温和,选择性好。在反应温度110℃,反应压力3.0 MPa,m(催化剂)∶m(甲基铃兰醛)=0.03∶1.00,反应7.5 h的条件下,产品甲基铃兰醇的收率达99%以上,精馏后产品的质量分数大于98%。

Hydrogenation of 2,2-Dimethyl-3-(3-methylphenyl) Propionaldehyde Using NiB/SiO2 Amorphous Alloy

2,2-Dimethyl-3-(3-methylphenyl)-propan-1-ol was synthesized using NiB/SiO2 amorphous alloy as catalyst and 2,2-dimethyl-3-(3-methylphenyl)propionaldehyde as starting materials through hydrogenation.According to the experiment,NiB/SiO2 has a very high catalytic activity and selectivity,which made the reaction conditions very moderation.The optimum conditions were as follows: reaction temperature 110℃,reaction pressure 3.0 MPa,m(catlyst)∶m(2,2-dimethyl-3-(3-methylphenyl)propionaldehyde)=0.03∶1.00,and reaction time 7.5 h.Under above conditions,the yield of 2,2-dimethyl-3-(3-methylphenyl)-propan-1-ol was above 99%,the weight percent was above 98% by rectification.