公开(公告)号：US20140364619A1

公开(公告)日：2014-12-11

申请号：US14301576

申请日：2014-06-11

Applicant: RHODIA OPERATIONS

Inventor： Laurianne TIMBART ,  Nemesio MARTINEZ-CASTRO ,  James WOODS ,  Howard PROKOP ,  Rastko VUKOV

IPC: C07D233/32

CPC classification number: C07D233/32

Abstract: Transesterification processes for producing a compound of formula (I) wherein R1 is H or a methyl group, A and B are each, independently, a linear or branched C2-C5 alkylene group, comprising reacting: an acrylate or methacrylate of formula (II) wherein R1 is H or a methyl group and R2 is a C1-C4 alkyl group, with a compound of formula (III) wherein the reaction is performed: (i) in the presence of calcium oxide and calcium hydroxide, and (ii) wherein the molar ratio of the compounds of formula (II) to formula (III) is less than 4:1 or 3:1 respectively.

Abstract translation: 制备其中R 1为H或甲基的式（I）化合物的酯交换方法，A和B各自独立地为直链或支链C 2 -C 5亚烷基，包括使式（II）的丙烯酸酯或甲基丙烯酸酯反应： 其中R1是H或甲基，R2是C1-C4烷基，其中进行反应的式（III）化合物：（i）在氧化钙和氢氧化钙的存在下，和（ii）其中 式（II）化合物与式（III）的摩尔比分别小于4:1或3:1。