Process for preparing 1-(N-.beta.-cyanethylaminol-3-acylaminobenzenes
US4007213A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1976 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Apr 27, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.