Richard Josef Troxler

Title: Richard Josef Troxler: Innovator in Desoxy-alpha-acids Production

Introduction

Richard Josef Troxler is a notable inventor based in Birsfelden, Switzerland. He has made significant contributions to the field of chemistry, particularly in the production of desoxy-alpha-acids. With a total of 2 patents to his name, Troxler's work has implications in various industries, including food and beverages.

Latest Patents

Troxler's latest patents include a process for producing desoxy-alpha-acids. This innovative process involves converting a beta-acid into a mixture of its monoacylation products. The monoacylation product is then reacted at temperatures ranging from 160°C to 250°C, in the presence of a lower alkanoic acid and an anhydride of such an alkanoic acid. This reaction results in the triacyl derivative of the corresponding desoxy-alpha-acid, which is subsequently hydrolyzed to obtain the final product. Desoxy-alpha-acids serve as valuable intermediates for producing bitter principles used in the foodstuffs and drinks industry. Another patent focuses on the preparation of deoxy-alpha-acids (deoxyhumulons) through the prenylation of acylphloroglucinols under alkaline conditions. This process is performed in a mixture of water and an organic solvent that is immiscible with water, utilizing a phase-transfer catalyst.

Career Highlights

Richard Josef Troxler has been associated with Ciba-Geigy Corporation, where he has applied his expertise in chemical processes. His work has contributed to advancements in the production of important chemical compounds.

Collaborations

Troxler has collaborated with notable colleagues such as Urs Burckhardt and Lucius Werthemann, enhancing the innovative capacity of his projects.

Conclusion

Richard Josef Troxler's contributions to the field of chemistry, particularly in the production of desoxy-alpha-acids, highlight his role as an influential inventor. His patents reflect a commitment to innovation that benefits various industries.