Patents by Inventor Heinz Schwemlein

Heinz Schwemlein 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 making acylamides by synthesizing and acylating benzoxazines
    Publication number: 20060014946
    Abstract: A method is provided for synthesizing acylamides, useful as protectant for cultivated plants. A benzoxazine, such as 3,4-dihydro-3-methyl-2H-1,4-benzoxazine, is made in a stepwise manner by initially forming an o-nitrophenoxyketone by reacting a haloketone and a nitrophenol. The o-nitrophenoxyketone is hydrogenated to form the corresponding benzoxazine, which is thereafter acylated with an acylhalide to produce the acylamide, such as 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine.
    Type: Application
    Filed: August 15, 2005
    Publication date: January 19, 2006
    Inventors: Robert Munson, Catherine Munson, Michael Oliver, Heinz Schwemlein