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:
Nov. 13, 1979
Filed:
Jun. 06, 1978
Andre Bousquet, Portet, FR;
Emile Braye, Lagardelle, FR;
Parcor, Paris, FR;
Abstract
This invention relates to a process for the preparation of compounds having the general formula: ##STR1## in which: R.sub.1 represents a hydrogen atom, an optionaly substituted alkyl, aryl or aralkyl radical; R.sub.2 and R.sub.3 are the same or different and represent independently a hydrogen atom, a lower alkyl, aryl or heterocyclic radical; and R.sub.4 represents a hydrogen atom or an alkyl, cycloalkyl, alkoxy carbonyl, carboxy, aryl or heterocyclic radical, comprising reacting a compound having the formula: ##STR2## in which R.sub.1, R.sub.2 and R.sub.3 are as defined above, with a compound having the formula: ##STR3## in which R.sub.4 is as defined above; X is a halogen atom, or an optionally substituted alkoxy, thioalkyl or amino group; and Y represents an optionally substituted alkoxy, thioalkyl or amino group, or a group of the formula: ##STR4## in which R is a lower alkyl or aryl radical; or both the groups X and Y, together with the carbon atom to which they are attached, form a 6-membered hexahydro-S-triazinic, trioxannic or trithianic heterocyclic nucleus, in an inert solvent, at a temperature between 0.degree. and 150.degree. C. and in an anhydrous medium, and, if desired, liberating the free base.