Erwin Kübel

Title: Erwin Kübel: Innovator in Retinoic Acid Production

Introduction

Erwin Kübel is a notable inventor based in Linz, Austria. He has made significant contributions to the field of chemistry, particularly in the production of retinoic acid, which has important applications in medicine and biology.

Latest Patents

Kübel holds a patent for a method of production of 9-cis-retinoic acid. This improved method involves a reaction between a β-formyl-crotonic acid C-Calkyl or phenyl ester and an isolated 9-(Z)—C-triarylphosphonium salt through the Wittig reaction in the presence of a base. The process results in the corresponding 9-(Z)-retinoic acid ester, which is then saponified with a base to yield the 9-(Z)-retinoic acid carboxylate. Following protonation with an acid, the desired 9-(Z)-retinoic acid is obtained. Additionally, the method enhances the enrichment and isolation of the 9-(Z)—C-triarylphosphonium salt.

Career Highlights

Kübel is associated with Dsm IP Assets B.V., where he continues to innovate and develop new methods in chemical production. His work has been instrumental in advancing the understanding and application of retinoic acid.

Collaborations

Throughout his career, Kübel has collaborated with notable colleagues, including Michael Stanek and Stefan Essl. These partnerships have contributed to the success of his research and patent developments.

Conclusion

Erwin Kübel's contributions to the field of chemistry, particularly through his patent on the production of 9-cis-retinoic acid, highlight his innovative spirit and dedication to advancing scientific knowledge. His work continues to impact the industry positively.