发明名称 |
VERFAHREN ZUR DARSTELLUNG VON CARBONSAUREN ODER IHREN ESTERN DURCH OXIDATIVE SPALTUNG VON UNGESÄTTIGTEN FETTSÄUREN ODER IHREN ESTERN |
摘要 |
<p>A method of preparing carboxylic acids or esters thereof by the oxidative cleavage of unsaturated fatty acids or esters thereof is carried out in a two-phase aqueous-organic system in which the organic phase contains the unsaturated fatty acid and/or the esters thereof and the aqueous phase contains hydrogen peroxide. The oxidative cleavage is carried out in the presence of a catalytic system including a catalyst belonging to the group constituted by tungstic and molybdic acids and alkaline salts thereof, and an onium salt which acts as a phase-transfer agent for the catalyst, and has the formula: (R2R3R4R5M)+Y- in which R2, R3, R4 and R5 represent hydrocarbon groups of which at least one must have more than 10 carbon atoms, M is N or P, and Y-is an inorganic anion.</p> |
申请公布号 |
DE69217388(D1) |
申请公布日期 |
1997.03.20 |
申请号 |
DE1992617388 |
申请日期 |
1992.12.07 |
申请人 |
NOVAOL S.R.L., RAVENNA, IT |
发明人 |
FOA', MARCO, I-28100 NOVARA, IT;GARDANO, ANDREA, I-13039 TRINO, IT;SABARINO, GIAMPIERO, I-13100 VERCELLI, IT |
分类号 |
B01J31/34;C07C51/285;C07C53/126;C07C55/18;C07C67/333;C07C69/24;C07C69/48;C07D;(IPC1-7):C07C51/285 |
主分类号 |
B01J31/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|