| 发明名称 |
PROCESS FOR MAKING ARYLACRYLIC ACIDS AND THEIR ESTERS |
| 摘要 |
A "one-pot" process for the palladium catalyzed coupling of a diazonium salt with an olefinic bond, in the aqueous medium in which the diazonium salt is made, by employing a carboxylic acid as a solvent, is described. Arylacrylic acids and their esters, e.g. the cinnamates, can be produced at low catalyst concentration without first isolating the diazonium salt. The process is in particular applied to the synthesis of 2-ethylhexyl p-methoxycinnamate. |
| 申请公布号 |
EP0553668(A3) |
申请公布日期 |
1994.06.08 |
| 申请号 |
EP19930100596 |
申请日期 |
1993.01.16 |
| 申请人 |
GIVAUDAN-ROURE (INTERNATIONAL) S.A. |
发明人 |
CHALK, ALAN J;VIRGILIO, JOSEPH A.;WERTHEIMER, LASZLO;WERTHEIMER, THERESA B |
| 分类号 |
B01J31/12;B01J31/22;C07B61/00;C07C51/347;C07C51/353;C07C51/367;C07C59/64;C07C67/343;C07C69/54;C07C69/612;C07C69/65;C07C69/734;C07C69/738;C07C69/76;C07C201/12;C07C205/56;C07C231/12;C07C233/11;C07C233/65;C07C235/34;C07C253/30;C07C255/57;C07C303/22;C07C309/20;C07C309/58;C07D307/91 |
主分类号 |
B01J31/12 |
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