Patents by Inventor Zo Andriamialisoa

Zo Andriamialisoa 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).

  • .beta.-methylene aldehydes and preparation of compounds of interest by means of the .beta.-methyl aldehydes
    Patent number: 5925797
    Abstract: The invention relates to the .beta.-methylene aldehydes of formula: ##STR1## in which: R.sub.1 and R.sub.2, which may be identical or different, are chosen from a hydrogen atom and optionally substituted carboacyclic, radicals,R.sub.3 and R.sub.4, which may be identical or different, are chosen from a hydrogen atom and optionally substituted carbocyclic, radicals, it not being possible for R.sub.3 and R.sub.4 simultaneously to be a hydrogen atom.The invention also relates to the use of these compounds for the preparation of compounds of interest, in particular from the retinoid or carotenoid family, and the respective structural analogs thereof.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: July 20, 1999
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Michel Giraud, Pierre Potier, Zo Andriamialisoa, Alain Valla