MANUFACTURE OF SCHIFF*S BASE

Title:

MANUFACTURE OF SCHIFF*S BASE

Document Type and Number:

Japanese Patent JPS55100350

Kind Code:

A

Abstract:

Schiff's bases of the formula are obtained by reacting an amine H2N-R3 with a ketone in presence of calcium hydrogen phosphate, apatite, aluminum oxide, aluminium hydroxide and/or Fuller's Earth and subsequent removing the water by azeotronic distillation. The products are intermediates for the preparation of phenylene diamines which may be used as age resistors for rubber.

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Inventors:

YOAHIMU GEORUGE

Application Number:

JP268580A

Publication Date:

July 31, 1980

Filing Date:

January 16, 1980

Export Citation:

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Assignee:

BAYER AG

International Classes:

C07B61/00; B01J20/10; B01J21/00; B01J21/02; B01J21/16; B01J27/00; B01J27/18; C07C67/00; C07C241/00; C07C251/06; C07C251/08; C07C251/20; C07C; (IPC1-7): B01J20/10; B01J21/02; B01J27/18; C07C119/06; C07C119/12

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