Patents by Inventor Bernard Bottanet

Bernard Bottanet 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).

  • Intermediate compounds usable for the preparation of herbicides
    Patent number: 5041626
    Abstract: The invention relates to compounds of formula: ##STR1## in which R.sup.4 is a group which can be hydrogenolyzed, R and R.sup.1 are alkyl groups, X.sup.- is an HSO.sub.4.sup.-, Cl.sup.- or R.sup.7 SO.sub.3.sup.- anion and to a process for the preparation of the compounds of formula (I) by the hydrolysis of the compounds of formula (II): ##STR2## in which R.sup.2 and R.sup.3 are alkyl groups linked to the oxygen via a secondary carbon, using sulphuric or hydrochloric acid. The invention also relates to the use of compounds of formula (I) for the preparation of herbicide by the hydrogenolysis of the compounds of formula (I).
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: August 20, 1991
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Bernard Bottanet, Michel Mulhauser