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:
Feb. 08, 1977
Filed:
Apr. 27, 1976
Rudolf Schickfluss, Frankfurt am Main, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
Process for the manufacture of 1-(N-.beta.-cyanethylamino)-3-acylaminobenzenes of the formula (1) ##STR1## in which R.sub.1 represents hydrogen, methyl or alkoxy of 1 to 4 carbon atoms, R.sub.2 represents hydrogen, alkyl from 1 to 3 carbon atoms or phenyl, R.sub.3 represents hydrogen or alkyl from 1 to 3 carbon atoms, and n represents the integer 0 or 1, which comprises reacting 1 mole of an amino of the formula (2) ##STR2## in which R.sub.1, R.sub.2 and R.sub.3 are defined as above, with 1 to 1.75 moles of acrylonitrile between 70.degree. and 150.degree. C in water with the addition of 1 to 30% by weight of an organic carboxylic acid or carbonic acid, and oxethylating the compound at the said formula (1) obtained, if n stands for the integer 0, without or after isolation, with 1 to 10 moles of ethylene oxide between 50.degree. and 100.degree. C.