Hans-Josef Altenbach

Title: Hans-Josef Altenbach: Innovator in Chemical Methods

Introduction

Hans-Josef Altenbach is a notable inventor based in Wuppertal, Germany. He has made significant contributions to the field of chemistry, particularly in the development of methods for producing optically active compounds and amino acids. With a total of 3 patents to his name, Altenbach's work has implications in various industries, including perfumery and pharmaceuticals.

Latest Patents

One of Altenbach's latest patents is a method for preparing optically active 5-methyl-2-(1-methyl-butyl)-5-propyl-1,3-dioxan. This invention outlines a multi-step process that begins with the conversion of lactic acid methyl ester into a corresponding N,N-disubstituted amide. The method includes several chemical reactions, such as protecting the free OH function, conducting a Grignard reaction, and ultimately producing a compound that exhibits a remarkable scent profile suitable for use in perfumes.

Another significant patent by Altenbach is a method of producing amino acids and amino-acid derivatives. This invention describes a chemical method for synthesizing compounds under radical conditions, which serve as intermediates in the creation of bioactive substances.

Career Highlights

Throughout his career, Hans-Josef Altenbach has worked with prominent companies such as Cognis Deutschland GmbH and Degussa-Hüls AG. His experience in these organizations has contributed to his expertise in chemical processes and innovation.

Collaborations

Altenbach has collaborated with notable colleagues, including Annegret Vogt and Thomas Markert. These partnerships have likely enhanced his research and development efforts in the field of chemistry.

Conclusion

Hans-Josef Altenbach is a distinguished inventor whose work in chemical methods has led to valuable patents and advancements in the industry. His contributions continue to influence the fields of perfumery and pharmaceuticals, showcasing the importance of innovation in science.