A process for the preparation of an olefinically unsaturated ether by reacting a conjugated diene and a lower alkanol with the aid of an acidic catalyst, in which process a non-basic aprotic polar solvent, such as methyl ethylketone or sulfolane, is used in order to increase the selectivity. As conjugated diene butadiene is preferred. Butadiene may be used together with isobutene, n-butenes and butanes.
在酸性催化剂的帮助下,通过共轭二烯和低级烷醇反应制备烯烃不饱和醚的工艺,在该工艺中,为了提高选择性,使用了非碱性非烷基极性溶剂,如
甲基乙基酮或砜。作为共轭二烯,
丁二烯是首选。
丁二烯可与
异丁烯、正
丁烯和
丁烷一起使用。