A process for the manufacture of an acetylenically unsaturated alcohol comprising reacting formaldehyde, an aldehyde or a ketone (a carbonyl compound) with acetylene in the presence of ammonia and a strongly basic macroporous anion exchange resin, the latter preferably featuring a polystyrene matrix and quaternary ammonium groups, preferably of type I or Type II. The reaction products, which depending on the starting carbonyl compound are propargyl alcohol or 1-monosubstituted or 1,1-disubstituted derivatives thereof, are of use as intermediates in the synthesis of many useful end products, inter alia in the field of vitamins and carotenoids.
一种制造
乙炔基不饱和醇的工艺,包括
甲醛、醛或酮(羰基化合物)与
乙炔在
氨和强碱性大孔阴离子交换
树脂(后者最好具有聚
苯乙烯基质和季
铵基团,最好是 I 型或 II 型)存在下反应。根据起始羰基化合物的不同,反应产物为
丙炔醇或其 1-单取代或 1,1-二取代衍
生物,可用作合成许多有用最终产品的中间体,特别是在
维生素和类
胡萝卜素领域。