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. 26, 1979
Filed:
Jan. 18, 1978
Hironobu Sano, deceased, LATE OF Fuji, JP;
Sataro Okamura, deceased, LATE OF Shizuoka, JP;
by Eijiro Okamura, legal representative, Kiryu, JP;
Yoshiki Nakayama, Shimizu, JP;
Kazunari Hirao, Shizuoka, JP;
Ihara Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
Indoline derivatives having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are defined below are produced by a cyclization of 2-halogenophenethylamine compounds having the formula ##STR2## wherein R.sub.1 represents hydrogen atom, a lower alkyl, a lower alkoxyl, nitro or hydroxyl group; R.sub.2 represents hydrogen atom; a lower alkoxyl or nitro group; R.sub.3 represents hydrogen atom or a lower alkyl group and at least one of R.sub.1, R.sub.2 and R.sub.3 is a lower alkyl, a lower alkoxyl or nitro group; and X represents a halogen atom, in the presence of a copper type catalyst and ammonia.