Patents by Inventor Gyorgy Bacskai

Gyorgy Bacskai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Herbicidal 4-chloro-aryloxy-acetyl- and 4-chloro-aryloxy-propionyl-malonates
    Patent number: 4708733
    Abstract: The invention relates to new 4-chloro-aryloxy-acetyl- or 4-chloro-aryloxy-propionyl-malonates of the general Formula I, ##STR1## a process for the preparation thereof and herbicidal compositions comprising the same.In the general Formula IR.sup.1 stands for chlorine or methyl;R.sup.2 represents hydrogen or chlorine;R.sup.3 stands for hydrogen or methyl;R.sup.4 represents C.sub.1-4 alkyl and the two R.sup.4 groups may be identical or different; andX is --N.dbd. or --CH.dbd..The compounds of the general Formula I may be prepared by reacting a compound of the general Formula II ##STR2## with a metal derivative of a malonate of the general Formula III; ##STR3## or in the presence of an metal compound with a malonate of the general Formula III; or by reacting a compound of the general Formula IV ##STR4## with a compound of the general Formula V ##STR5## (in which Formulae R.sup.1, R.sup.2, R.sup.3, R.sup.4 and X are as stated above; Z stands for halogen and Y represents halogen, cyano or alkylcarbonyloxy).
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: November 24, 1987
    Assignees: Budapesti Vegyimuvek, MTA Kozponti Kemiai I Kutato Intezet
    Inventors: Tamas Komives, Ferenc Dutka, Istvan Barta, Istvan Jablonkai, Agnes Hulesch, Ferenc Bihari, Gyula Eifert, Peter Bohus, Mihaly Nagy, Gyorgy Bacskai, Istvan Kuronya