公开(公告)号：US20130131379A1

公开(公告)日：2013-05-23

申请号：US13582345

申请日：2011-03-04

申请人： Marc Lemaire ,  Alain Favre-Reguillon ,  Bénédicte Paquit ,  Sylvain Claude ,  Yann Raoul

发明人： Marc Lemaire ,  Alain Favre-Reguillon ,  Bénédicte Paquit ,  Sylvain Claude ,  Yann Raoul

IPC分类号： C07C51/377 ,  C07C51/31

CPC分类号： C07C51/377 ,  C07C51/29 ,  C07C51/31 ,  C07C67/31 ,  C07C67/333 ,  C07C55/18 ,  C07C53/126 ,  C07C55/14 ,  C07C69/675 ,  C07C69/48

摘要： The present invention relates to a method for preparing carboxylic acids, in particular mono- and dicarboxylic acids, by oxidative cleavage of a vicinal diol.According to the invention, said method consists of reacting a vicinal diol of formula I: where: p is an integer comprised between 1 and 6; R1 and R2 are, separately: an alkyl or hydroxyl group having 1 to 12 carbon atoms; a —(CH2)n—C02M group where n, which can be identical or different in R1 and R2, is an integer comprised between 1 and 11 and M is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms or an alkaline cation; or R1 and R2 jointly form an alkylene —(CH2)m- group where m is an integer comprised between 2 and 10, preferably between 2 and 6; with industrial-grade sodium hypochlorite (or bleach), in the absence of an organic solvent and without adding a catalyst, preferably at room temperature. The invention can be used for recycling natural vegetable oils.

摘要翻译： 本发明涉及通过邻位二醇的氧化裂解制备羧酸，特别是单羧酸和二羧酸的方法。 根据本发明，所述方法包括使式I的邻二醇反应：其中：p是1至6之间的整数; R1和R2分别是具有1至12个碳原子的烷基或羟基; - （CH 2）n -CO 2 M基团，其中在R1和R2中可以相同或不同的n是1和11之间的整数，M是氢原子或具有1至4个碳原子的烷基或碱 阳离子; 或R 1和R 2共同形成亚烷基 - （CH 2）m - 基团，其中m为2至10，优选2至6的整数; 在工业级次氯酸钠（或漂白剂）中，在不存在有机溶剂的情况下，优选在室温下不加入催化剂。 本发明可用于回收天然植物油。