The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1987
Filed:
May. 07, 1985
Ihara Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
A process for producing an indoline of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group or a hydroxyl group, R.sub.2 is a hydrogen atom, a lower alkoxy group or a nitro group, and R.sub.3 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: ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 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.
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