PRODUCTION OF PHTHLONITRILE COMPOUND - YAMAMOTO CHEMICALS INC

Title:

PRODUCTION OF PHTHLONITRILE COMPOUND

Document Type and Number:

Japanese Patent JPH0977731

Kind Code:

A

Abstract:

To simply and safely obtain a corresponding 3-alkoxyphthalonitrile in high yield and high purity by reacting 3-nitrophthalonitrile with an alcohol.

A basic catalyst (e.g. sodium hydrate) is dispersed into a mixture of an alcohol of the formula ROH (in R, C bonded to O is a secondary or tertiary ≥4C alkyl or ≥5C cycloalkyl) with an aprotic polar solvent (e.g. DMF) at ≤25°C while retaining a state not substantially generating hydrogen. Then, 3-nitrophthalonitrile is added thereto at ≤25°C to provide the objective phthalonitrile compound expressed by the formula. The phthalonitrile compound is useful as a synthetic intermediate for a phthalocyanine compound used as a light recording medium, a near-infrared ray absorbing filter, an OPC, etc., for electrophotography.

Inventors:

FUJITA SHIGEO
KUMAGAI YOJIRO
MASAOKA TOSHIHIRO
SASAKI HIROYUKI
TANIGUCHI JUNICHI

Application Number:

JP23568195A

Publication Date:

March 25, 1997

Filing Date:

September 13, 1995

Export Citation:

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Assignee:

YAMAMOTO CHEMICALS INC
MITSUI TOATSU CHEMICALS

International Classes:

B01J31/12; C07B61/00; C07C253/30; C07C255/54; (IPC1-7): C07C255/54; B01J31/12; C07C253/30

Attorney, Agent or Firm:

Wakabayashi Tadashi

Next Patent: PRODUCTION OF ALKOXYNAPHTHONITRILE DERIVATIVE