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:
Dec. 10, 1985
Filed:
Jun. 07, 1983
Applicant:
Inventors:
Leander Tenud, Visp, CH;
Synese Jolidon, Visp, CH;
Assignee:
Lonza Ltd., Gampel/Valais, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564194 ; 564200 ;
Abstract
Process for the production of 4-(trialkylammonium)-acetoacetarylides having the formula: ##STR1## wherein R is H, a lower alkyl, --OCH.sub.3, --OC.sub.2 H.sub.5, --Cl, --Br, --NO.sub.2, --NHCOCH.sub.3 or an anilated heterocyclic ring; n is 1 to 3; R.sup.1, R.sup.2 and R.sup.3 each is an alkyl having 1 to 18 C atoms; and X is Cl or Br. Such arylide is prepared by reacting a corresponding trialkylamine with a corresponding 4-haloacetoacetarylide at a low temperature in the presence of an organic solvent.