Patents by Inventor Albert Edward Kaye

Albert Edward Kaye 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).

  • Preparation cyano substituted cyclopropane
    Patent number: 4118412
    Abstract: A process for the preparation of cyclopropane compounds which comprises reacting a compound of formula:Y--CH.sub.2 --CNwith a diene of formula:CX.sub.2 =CH--CH=C(CH.sub.3).sub.2in the presence of at least one reducible copper salt, X being chlorine or bromine and Y being cyano, alkoxycarbonyl containing up to four carbon atoms in the alkoxy moiety, benzyloxycarbonyl, phenoxybenzyloxycarbonyl or 2,2-dichlorovinyloxybenzyloxycarbonyl.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: October 3, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Peter John Vernon Cleare, Albert Edward Kaye, David John Milner
  • Manufacture of 2-cyano-propionate esters
    Patent number: 3956357
    Abstract: A process for the manufacture of 2-cyano-propionate esters which comprises hydrogenating in the presence of an hydrogenating catalyst a mixture of a cyano-acetic ester, formaldehyde and a condensation catalyst. Typically ethyl cyano-acetate is treated with formalin or paraform and hydrogen in the presence of palladium on carbon and zinc acetate. Preferably an antioxidant or polymerisation inhibitor is also included in the reaction mixture which also usually includes solvents such as glacial acetic acid or toluene.
    Type: Grant
    Filed: March 13, 1975
    Date of Patent: May 11, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Albert Edward Kaye, Alan Cyril Tucker, Ronald James Hurlock
  • Manufacture of 2-(alkyl)amino-4-hydroxy-5-alkylpyrimidines
    Patent number: 3947440
    Abstract: Reaction of a 2-amino-, 2-alkylamino- or 2-dialkylamino-4-hydroxypyrimidine, preferably also containing a methyl group at the 6 position, with an aldehyde R--CHO in presence of hydrogen and a hydrogenation catalyst introduces an alkyl group R--CH.sub.2 -- into the 5 position. The reaction is preferably carried out under superatmospheric pressure at a temperature between 80.degree. and 180.degree.C and is aided by metal salts, acids, amines, amine salts or basic ion-exchange resins.
    Type: Grant
    Filed: January 2, 1974
    Date of Patent: March 30, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Albert Edward Kaye, Alan Cyril Tucker