Patents by Inventor Danniel Adrianus Franciscus Boxtel Van

Danniel Adrianus Franciscus Boxtel Van 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).

  • Process for the preparation of glyceraldehyde acetonide
    Publication number: 20070129553
    Abstract: The invention relates to a process for the preparation of glyceraldehyde acetonide by oxidation of 2,2-dimethyl-1,3-dioxolane-4-methanol by an oxidizing agent, wherein the 2,2-dimethyl-1,3-dioxolane-4-methanol is oxidized by an organic N-chloro compound in the presence of an inert base and TEMPO or a TEMPO-derivative. In one embodiment of the invention enantiomerically enriched glyceraldehyde acetonide is prepared from the corresponding enantiomerically enriched 2,2-dimethyl-1,3-dioxolane-4-methanol. Preferably, the organic N-chloro compount is trichloroisocyanuric acid or dichlorodimethyl hydantoin. Preferably, the inert base is sodium acetate or sodium bicarbonate.
    Type: Application
    Filed: October 25, 2004
    Publication date: June 7, 2007
    Inventors: Peter Quaedflieg, Danniel Adrianus Franciscus Boxtel Van, Paulus Alsters, Peter Pojarliev, Walther Jary