Johannes G De Vries

Title: Innovations and Contributions of Johannes G De Vries

Introduction

Johannes G De Vries is a notable inventor based in Maastricht, Netherlands. He has made significant contributions to the field of chemistry, particularly in the development of new compounds and processes. With a total of 6 patents to his name, his work has had a considerable impact on various industrial applications.

Latest Patents

Among his latest patents, Johannes has developed indenyl compounds and catalyst components for the polymerization of these compounds. This invention relates to an indenyl compound of a specific general formula. Additionally, he has created a process for the preparation of dicarboxylic acids. This process involves the oxidation of a heterocyclic o-dicarboxylic acid containing at least one nitrogen atom, using hydrogen peroxide, a Bronsted acid, and an iron compound, preferably Fe(NO.sub.3).sub.3. The method allows for higher yields when a copper compound or an organic electron-transferring compound is also utilized. Notably, this process can be employed to prepare 2,3-pyridine dicarboxylic acids from corresponding quinoline compounds.

Career Highlights

Johannes G De Vries is associated with DSM N.V., a company known for its innovative solutions in health, nutrition, and materials. His work at DSM has allowed him to explore various avenues in chemical research and development, contributing to the advancement of the industry.

Collaborations

Throughout his career, Johannes has collaborated with esteemed colleagues such as Johannus A Van Beek and Henricus J Arts. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Johannes G De Vries is a distinguished inventor whose work in the field of chemistry has led to significant advancements. His patents and collaborations reflect his commitment to innovation and excellence in research.