考察了水促进的RuCl3催化α-蒎烯加氢反应.结果表明,同传统催化剂或无水RuCl3相比,水对α-蒎烯加氢反应具有明显的促进作用,可显著提高蒎烷选择性及产物中蒎烷顺反比,且容易实现产物的分离及催化剂的循环使用.在RuCl3·3H2O用量1.8mg,α-蒎烯2.5g,m(H2O):m(a-蒎烯)=4:1下,160℃,5MPaH2条件下反应5h,α-蒎烯转化率达99.7%,蒎烷顺反比为28,其中顺式蒎烷选择性为96.3%.此外,分离所得溶有RuCl3水相不经任何处理重复使用5次,其催化活性不变,具有较好的重复使用性能.
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