Company Filing History:
Years Active: 1977-1984
Title: Innovations by Werner Evertz: Pioneering Aniline Synthesis
Introduction
Werner Evertz, an accomplished inventor based in Monheim, Germany, has made significant contributions to the field of chemistry and organic synthesis. With an impressive portfolio of seven patents, his work is primarily focused on the preparation of various anilines, which are crucial intermediates in the production of agricultural chemicals and other products.
Latest Patents
Among his notable inventions, two recent patents stand out. The first, titled "Process for preparation of anilines which are m-substituted by chlorine," outlines a novel method for synthesizing m-chloroanilines through selective dehalogenation of higher chlorinated anilines in an acidic medium. This method employs noble metal catalysts and optionally substituted phenols, allowing for the production of 3-chloro- or 3,5-dichloroanilines, known intermediates used in plant protection agents.
The second patent, "Process for the preparation of m-halogen-substituted anilines," introduces an improved technique for synthesizing m-halogen-substituted anilines from polyhalogen substituted anilines. This process involves reacting the aniline with hydrogen in an acid medium, specifically in the presence of hydrogen iodide and/or compounds that generate hydrogen iodide under reaction conditions, alongside optionally substituted phenols.
Career Highlights
Werner Evertz's career is closely linked with Bayer Aktiengesellschaft, a global leader in pharmaceuticals and crop science. His role in the company has enabled him to advance his research and contribute to significant innovations in chemical synthesis, particularly in the field of aniline production.
Collaborations
Throughout his career, Evertz has collaborated with respected colleagues such as Karlfried Wedemeyer and Ferdinand Hagedorn. These partnerships have fostered a collaborative environment that encourages the sharing of ideas and expertise, enhancing the innovative processes he has developed.
Conclusion
Werner Evertz remains a vital figure in the realm of chemical innovation, with his patents reflecting both creativity and practical applications in industry. His work not only advances scientific understanding but also supports the development of essential chemical products that positively impact agriculture and beyond.