HERAPATHITE DERIVATIVE AND ITS INTERMEDIATE

Title:

HERAPATHITE DERIVATIVE AND ITS INTERMEDIATE

Document Type and Number:

Japanese Patent JPH0517473

Kind Code:

A

Abstract:

PURPOSE: To obtain the subject new compound useful as particles for light control element of particle disperse type light control element.

CONSTITUTION: A compound expressed by formula I (R1 is 2-18C alkyl or alkynyl; R2 is ethyl, ethyl monohalide, ethyl dihalide, monohydroxylated ethyl or ethylene) e.g. O-propyldihydrocuprene. The compound expressed by formula I is e.g. obtained by reacting cupreine or dihydrocupreine expressed by formula II with a phenolic hydroxyl group and alkyl halide in the presence of an alkali.

Inventors:

USUKI ARIMITSU
TAKEUCHI HISATO
OKAYAMA SHINOBU
TOSHIMA KAZUO

Application Number:

JP16991591A

Publication Date:

January 26, 1993

Filing Date:

July 10, 1991

Export Citation:

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Assignee:

TOYOTA CENTRAL RES & DEV
TOYOTA MOTOR CORP

International Classes:

C07D453/04; C09K3/00; G02B5/30; G02F1/17; (IPC1-7): C07D453/04; C09K3/00; G02B5/30; G02F1/17

Attorney, Agent or Firm:

Hiroshi Okawa

Next Patent: PRODUCTION OF HYDROXYIMINOOCTAHYDROINDOLE (2,3-A) QUINOLIDINE DERIVATIVE