公开(公告)号：US20190016662A1

公开(公告)日：2019-01-17

申请号：US16069994

申请日：2017-01-20

Applicant: ZEON CORPORATION

Inventor： Kanako SANUKI ,  Kei SAKAMOTO ,  Kumi OKUYAMA ,  Hiroki IWAKI

IPC: C07C51/64 ,  C07C51/60 ,  C07C67/14

Abstract: Provided is a method of producing an acid halide solution that is useful in production of a polymerizable liquid-crystal compound. The method of producing an acid halide solution includes: a first step of reacting a specific dicarboxylic acid compound with a halogenating agent in a water-immiscible organic solvent in the presence of at least 1.1 equivalents and not more than 3.0 equivalents of an activator relative to the dicarboxylic acid compound to obtain a reaction liquid including a solution that contains an acid halide compound and an oily liquid that is immiscible with the solution containing the acid halide compound; and a second step of removing the oily liquid from the reaction liquid obtained in the first step to obtain a purified liquid containing the acid halide compound.

公开(公告)号：US20180346401A1

公开(公告)日：2018-12-06

申请号：US15761541

申请日：2016-09-29

Applicant: ZEON CORPORATION

Inventor： Kumi OKUYAMA ,  Kei SAKAMOTO ,  Kanako SANUKI ,  Hiroki IWAKI

IPC: C07C67/14

CPC classification number: C07C67/14 ,  C07B61/00 ,  C07C51/60 ,  C07C2601/14 ,  C07C69/75 ,  C07C61/09

Abstract: The present disclosure provides a method for producing an acid halide solution that is useful as a production intermediate or the like that allows industrially advantageous production of a polymerizable liquid crystal compound. The method for producing an acid halide solution of the present disclosure includes a step α of reacting a halogenating agent and a dicarboxylic acid compound in a water-immiscible organic solvent in the presence of a tetraalkylammonium salt to obtain a water-immiscible organic solvent solution including an acid halide, and a step β of concentrating the obtained water-immiscible organic solvent solution.