Process for the preparation of n-acyl-n-alkyl-2,6- dialkyl-3-chloro-anilines
CA 1286684 C · Owner: Ciba-Geigy Ag · Inventors: Suess, Hans; Eckhardt, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Process for the preparation of N-acyl-N-alkyl-2,6-dialkyl-3-chloroanilines, Abstract of the Disclosure, N-acyl-N-alkyl-2,6-dialkyl-3-chloroanilines of the formula wherein R1 is methyl or ethyl, R2 is alkoxymethyl chloromethyl or, 2-tetrahydrofuryl, R3 is alkoxymethyl carboxy or alkoxycarbonyl and, R4 is hydrogen or methyl and if R3 is carboxy or alkoxycarbonyl, R4 is also 2-alkoxyethyl and 2-alkoxypropyl and R3 and R4, together, with the carbon atom to which both radicals are attached may also, form a 2-oxotetrahydro-3-furyl radical or a 2-oxo-5-methyltetrahydro-3-furyl radical, are prepared by reacting a 2,6-dialkylaniline of the formula, with a halide of the formula wherein X is chlorine …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.