公开(公告)号：US20190048025A1

公开(公告)日：2019-02-14

申请号：US16075660

申请日：2017-01-27

Applicant: GOTION, INC.

Inventor： Nicole HOLUB ,  Juergen HERBEL

IPC: C07F5/02 ,  C07D295/037 ,  C07D213/20 ,  C07C211/63 ,  H01M10/0525 ,  H01M10/0568

CPC classification number: C07F5/022 ,  C07C211/63 ,  C07D213/20 ,  C07D295/037 ,  H01G11/62 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/0025 ,  Y02E60/13

Abstract: A process for preparing a difluoro chelato borate salt comprising an anion A of formula (I) wherein is a bidentate radical derived from a 1,2-, 1,3- or 1,4-diol, from a 1,2-, 1,3- or 1,4-dicarboxylic acid or from a 1,2-, 1,3- or 1,4-hydroxycarboxylic acid by abstracting the two H atoms of pairs of adjacent OH groups of the respective diol, hydroxycarboxylic acid or dicarboxylic acid. The process includes step (i) reacting (a) one or more BF3 sources; (b) a dihydric compound selected from 1,2-, 1,3- and 1,4-diols, 1,2-, 1,3- and 1,4-dicarboxylic acids, and 1,2-, 1,3- and 1,4-hydroxycarboxylic acids; (c) one or more second boron sources which do not contain F; and (d) one or more proton acceptors.