Jochen Rapp

Title: Jochen Rapp: Innovator in Chemical Processes

Introduction

Jochen Rapp is a notable inventor based in Frankfurt am Main, Germany. He has made significant contributions to the field of chemistry, particularly in the preparation of specialized chemical compounds. With a total of five patents to his name, Rapp's work has had a considerable impact on the industry.

Latest Patents

Rapp's latest patents include a process for the preparation of 5-fluoroanthranilic alkyl esters and 5-fluoroanthranilic acid. The first patent describes a method that involves dissolving a 3-fluorobenzoic alkyl ester in sulfuric acid and reacting it with a nitrating acid at temperatures ranging from -10°C to 30°C. This process culminates in the production of 5-fluoroanthranilic alkyl esters, which can be further hydrolyzed to yield 5-fluoroanthranilic acid. The second patent outlines a process for preparing 5-fluoroanthranilic acid by reacting 5-fluoro-2-bromotoluene in the presence of a catalyst and an acidic solvent with oxygen or an oxygen-containing gas at temperatures between 80°C and 220°C.

Career Highlights

Jochen Rapp is associated with Hoechst Aktiengesellschaft, a prominent company in the chemical industry. His work at Hoechst has allowed him to develop innovative processes that enhance the efficiency and effectiveness of chemical production.

Collaborations

Rapp has collaborated with notable colleagues such as Theodor Papenfuhs and Gunter Keil. These partnerships have contributed to the advancement of his research and the successful implementation of his patented processes.

Conclusion

Jochen Rapp's contributions to the field of chemistry through his innovative patents and collaborations highlight his role as a significant inventor. His work continues to influence the industry and pave the way for future advancements in chemical processes.