| 发明名称 |
Process for the preparation of (meth)acrylic esters and derivatives |
| 摘要 |
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. |
| 申请公布号 |
US9145371(B2) |
申请公布日期 |
2015.09.29 |
| 申请号 |
US201414301576 |
申请日期 |
2014.06.11 |
| 申请人 |
RHODA OPERATIONS |
发明人 |
Timbart Laurianne;Martinez-Castro Nemesio;Woods James;Prokop Howard;Vukov Rastko |
| 分类号 |
C07D233/32 |
主分类号 |
C07D233/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process 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 5:1, respectively. |
| 地址 |
Paris FR |
