假性紫罗兰酮合成中的相转移催化作用

PHASE TRANSFER CATALYSIS IN PSEUDOIONONE SYNTHESIS

本文研究了柠檬醛与丙酮在相转移催化条件下的缩合反应。以氢氧化钠的稀水溶液为缩合剂,在适量相转移催化剂的存在下,可缩短反应时间,提高反应收率。经6小时反应所得假性紫罗兰酮的收率可提高10%左右,酮含量一般在95%以上.

The condensation reaction between acetone and citral in the condition of PTC and using diluted solution of NaOH as condensation agent was researched.In the presence of appropriate amount of PTC,the reaction time was reduced and the yield was increased.The yield of pseudoionone increased about 10 percent and the ketone content was above 95 percent when it reacted for 6 hrs.