Process for producing an indoline

A process for producing an indoline of the formula: (I) wherein R1 is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group or a hydroxyl group, R2 is a hydrogen atom, a lower alkoxy group or a nitro group, and R3 is a hydrogen atom, a lower alkyl group or a substituted lower alk...

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Bibliographic Details
Main Authors SHINOHARA; AKIRA, MORINAGA; MICHIO, IKEDA; AKIRA
Format Patent
LanguageEnglish
Published 16.06.1987
Edition4
Subjects
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:A process for producing an indoline of the formula: (I) wherein R1 is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group or a hydroxyl group, R2 is a hydrogen atom, a lower alkoxy group or a nitro group, and R3 is a hydrogen atom, a lower alkyl group or a substituted lower alkyl group, by a cyclization reaction of a 2-halogenophenethylamine of the formula: (II) wherein R1, R2 and R3 are as defined above, and X is a halogen atom, in the presence of a copper type catalyst and a dehydrohalogenating agent, characterized in that copper bis(8-hydroxyquinolinolate) is used as the copper type catalyst, and an alkali is used as the dehydrohalogenating agent.
Bibliography:Application Number: US19850731393