申请人:Stamicarbon B.V.
公开号:US04820858A1
公开(公告)日:1989-04-11
The invention relates to a process for the preparation of 2-(hydroxyalkyl)acrylic compounds having the formula ##STR1## wherein X represents a --CN group, a --COOR.sub.3 group, a --COR.sub.4 group or a --CONR.sub.4 R.sub.5 group wherein R.sub.3 is an alkyl group containing 1-4 C atoms and R.sub.4 and R.sub.5 independently represent an H atom or R.sub.3, and wherein R.sub.1 and R.sub.2 independently represent an H atom or an alkyl group with 1-4 C atoms or an (hetero) aryl group, or R.sub.1 and R.sub.2 together represent a cyclic compound with 5-12 C atoms by contacting an acrylic compound H.sub.2 C.dbd.CH--X with a carbonyl compound of the formula ##STR2## wherein X, R.sub.1 and R.sub.2 denote the same as in the above, this being effected in the liquid phase in the presence of a tertiary amine, characterized in that the reaction is carried out at a pressure in excess of 500 bar in excess of 500 bar, advantageously 1,500-18,000 bar.
该发明涉及一种制备具有以下结构式的2-(羟基烷基)丙烯化合物的方法:其中X代表--CN基团、--COOR.sub.3基团、--COR.sub.4基团或--CONR.sub.4 R.sub.5基团,其中R.sub.3是含有1-4个碳原子的烷基基团,而R.sub.4和R.sub.5分别代表H原子或R.sub.3,R.sub.1和R.sub.2分别代表H原子或含有1-4个碳原子的烷基基团或(杂)芳基团,或者R.sub.1和R.sub.2一起代表含有5-12个碳原子的环状化合物,方法是通过将丙烯化合物H.sub.2 C.dbd.CH--X与具有以下结构式的羰基化合物接触而在液相中在三级胺的存在下进行,其中X、R.sub.1和R.sub.2的含义如上所述,其特征在于反应在超过500巴的压力下进行,优选为1,500-18,000巴。