A process for the alkoxycarbonylation of a vinyl ester comprising reacting a vinyl ester with carbon monoxide in the presence of an alkanol and a catalyst system. The catalyst system used in the said process is obtainable by combining: a) a metal of Group VIII B or a compound thereof, and b) a bidentate ligand of general formula (I) wherein, R is a covalent bridging group; R1 together with Q2 to which it is attached form an optionally substituted 2-Q2-tricyclo[3.3.1.1 3,7}]decyl group or derivative thereof(2-PA); R2 and R3 independently represent univalent radicals upto 20 atoms or jointly form a bivalent radical of up to 20 atoms; and Q1 and Q2 each independently represent phosphorous, arsenic or antimony. The process is carried out for the production of a 3-hydroxy propanoate ester or acid of formula (II) CH2 (OH)CH2 C(O) OR28. The process may also be carried out for the production of a lactate ester or acid of formula (III).
一种用于烯
丙酸酯的烷氧羰基化的方法,包括在存在一种烷醇和一个催化剂体系的情况下,将烯
丙酸酯与
一氧化碳反应。所述方法中使用的催化剂体系可通过组合以下物质获得:a) VIII B族
金属或其化合物,以及b) 一种一般式(I)的双齿
配体,其中,R是一个共价桥接基团;R1与其连接的Q2共同形成一个可选择地取代的2-Q2-
三环[3.3.1.1 3,7}]癸基团或其衍
生物(2-PA);R2和R3独立地代表最多20个原子的一价基团,或共同形成最多20个原子的二价基团;Q1和Q2各自独立地代表
磷、
砷或
锑。该方法用于生产式(II)
CH2 (OH) C(O) OR28的
3-羟基丙酸酯或酸。该方法也可用于生产式(III)的
乳酸酯或酸。