【発明の名称】塩化クロロホルミルオキシ置換イソフタロイルの製造方法

Title:

【発明の名称】塩化クロロホルミルオキシ置換イソフタロイルの製造方法

Document Type and Number:

Japanese Patent JPH0794409

Kind Code:

B2

Abstract:

Chloroformyloxy-substituted isophthaloyl chlorides are made by forming a mixture of hydroxy-substituted isophthalic acid, or salt thereof, catalyst, phosgene and solvent, heating the mixture in a pressure vessel under autogeneous pressure, treating the mixture to remove the solvent, and distilling the mixture to yield the chloroformyloxy-substituted isophthaloyl chloride. The preferred chloroformyloxy-substituted isophthaloyl chloride is 5-chloroformyloxyisophthaloyl chloride and the preferred catalyst is imidazole.

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Inventors:

SAMYUERU DEIBITSUDO AASAA

Application Number:

JP16749394A

Publication Date:

October 11, 1995

Filing Date:

June 28, 1994

Export Citation:

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Assignee:

II AI DEYUHON DE NIMOASU ANDO CO

International Classes:

B01D69/12; B01D71/54; B01D71/56; C07B61/00; B01J31/02; C07C67/00; C07C67/14; C07C68/02; C07C69/96; C08G71/00; (IPC1-7): C07C69/96; B01J31/02; C07C68/02

Attorney, Agent or Firm:

Heiyoshi Odashima (1 person outside)

Next Patent: VACUUM THIN FILM FORMING DEVICE