MANUFACTURE OF HALOAROMATIC COMPOUND

Title:

MANUFACTURE OF HALOAROMATIC COMPOUND

Document Type and Number:

Japanese Patent JPS6197234

Kind Code:

A

Abstract:

A process for the preparation of chloro-difluorobenzene compounds of the formulawhere R is CN or CF₃, comprises the steps of(A) reacting an alkali metal fluoride with 4-chloro-3,5-dinitrobenzonitrile or 4-chloro-3,5-dinitrobenzotrifluoride to form the corresponding 4-fluoro-3.5-dinitrobenzonitrile or 4-fluoro-3,5-dinitrobenzotrifluoride product.(B) chlorodenitrating the 4-fluoro product of step (A) to form the corresponding 3,5-dichloro-4-fluorobenzonitrile or 3,5-dichloro-4-fluorobenzotrifluoride compound.(C) reacting the 3,5-dichloro-4-fluorobensonitrile or 3,5-dichloro-4-fluorobenzotrifluoride compound prepared in step (B) with an alkali metal fluoride to form the corresponding 3-chloro-4,5-difluorobenzonitrile or 3-chloro-4,5-difluorobenzotrifluoride compound.

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WO/1983/003604	A PROCESS FOR PREPARING SUBSTITUTED POLYCYCLO-ALKYLIDENE POLYCYCLO-ALKANES AND THE CORRESPONDING EPIDIOXY COMPOUNDS; AS WELL AS SAID SUBSTITUTED POLYCYCLO-ALKYLIDENE POLYCYCLO-ALKANES AND THE CORRESPONDING EPIDIOXY COMPOUNDS

Inventors:

JIEIMUZU JIEI MOORU
DEIBUITSUDO WAI TANGU

Application Number:

JP19929385A

Publication Date:

May 15, 1986

Filing Date:

September 09, 1985

Export Citation:

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Assignee:

OCCIDENTAL CHEM CORP

International Classes:

C07C17/00; C07C17/093; C07C17/20; C07C25/13; C07C67/00; C07C253/00; C07C255/49; C07C255/50; (IPC1-7): C07C17/20; C07C25/13; C07C120/00; C07C121/52

Attorney, Agent or Firm:

Minoru Nakamura

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