Wilhelm Hess

Title: Wilhelm Hess: Innovator in Phosphite Preparation

Introduction

Wilhelm Hess is a notable inventor based in Jugendheim, Germany. He has made significant contributions to the field of chemistry, particularly in the preparation of cyclic phosphites. His innovative approach has led to advancements in the synthesis of pentaerythritol esters of phosphorous acid derivatives.

Latest Patents

Hess holds a patent for a process titled "Process for the preparation of cyclic phosphites." This invention involves a method for preparing pentaerythritol esters by reacting pentaerythritol with a phosphorous trihalide and a phenol, utilizing a quaternary salt or a polyether as a catalyst. The process not only enhances the yield but also allows for a one-step reaction by introducing phenol at the beginning of the reaction.

Career Highlights

Wilhelm Hess has worked with Ciba-Geigy Corporation, where he has applied his expertise in chemical processes. His work has contributed to the company's reputation for innovation in the chemical industry.

Collaborations

Hess has collaborated with notable colleagues such as Bjorn Schliebs and Hugo Illy, further enhancing the impact of his work in the field.

Conclusion

Wilhelm Hess is a distinguished inventor whose work in the preparation of cyclic phosphites has made a lasting impact on the chemical industry. His innovative processes continue to influence advancements in chemical synthesis.