Patents by Inventor Alexandre Kourdioukov

Alexandre Kourdioukov 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).

  • Method for preparing cyclopropylamines
    Patent number: 6043393
    Abstract: The present invention relates to a process for preparing cyclopropylamines of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 have specified meanings, by reacting(1) a carboxamide of the formula ##STR2## wherein R.sup.1, R.sup.2, and R.sup.3 have specified meanings, with(2) an olefin of the formula ##STR3## wherein R.sup.4, R.sup.5, and R.sup.6 have specified meanings, (3) alkylmagnesium halides or zinc alkyl compounds of the formulaR.sup.8 --X (VIII),wherein R.sup.8 has a specified meaning and X represents MgCl, MgBr, Mgl, ZnCl, ZnBr, Znl, or ZnR.sup.8, and(4) orthometallates of the formula (IX) ##STR4## wherein R.sup.9 has a specified meaning, Y represents Ti, Zr, or V.dbd.O, and Z represents chlorine, bromine, or C.sub.1 -C.sub.4 -alkyl,with the provisos that when is Y os Ti or Zr, then is 3 or 4 and r are zero or 1 and the sum q+r=4, and that when Y is V.dbd.O, then q represents 3 and r represents zero.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 28, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Armin de Meijere, Vladimir Chaplinski, Alexandre Kourdioukov