Pascal Jequier

Title: Innovations of Pascal Jequier

Introduction

Pascal Jequier is a notable inventor based in Melide, Switzerland. He has made significant contributions to the field of fine chemicals, particularly in the preparation of tetrahydrofolic acid and its derivatives. With a total of 2 patents to his name, Jequier's work showcases his expertise and dedication to innovation.

Latest Patents

Jequier's latest patents include a process for the preparation of (6S)-5,6,7,8-tetrahydrofolic acid. This process involves the careful addition of an acid to an aqueous solution of a (6RS)-diastereoisomeric mixture of an alkali metal salt of 5,6,7,8-tetrahydrofolic acid. The addition occurs at temperatures ranging from 5°C to 80°C, allowing for selective crystallization and stabilization of the pH between 4.8 and 5.3. The resulting solid, (6S)-5,6,7,8-tetrahydrofolic acid, is then separated. Another significant patent involves the preparation of diastereoisomeric pure tetrahydrofolates, specifically salts of (6R)-N(5),N(10)-methenyl-5,6,7,8-tetrahydrofolic acid, which follows a particular formula.

Career Highlights

Jequier is currently associated with Sapec S.A. Fine Chemicals, where he continues to develop innovative processes in the chemical industry. His work has contributed to advancements in the production of essential compounds used in various applications.

Collaborations

One of his notable collaborators is Fabrizio Marazza, with whom he has worked on various projects within the fine chemicals sector.

Conclusion

Pascal Jequier's contributions to the field of fine chemicals through his innovative patents highlight his role as a significant inventor. His work continues to impact the industry positively, showcasing the importance of research and development in creating valuable chemical processes.