Gabriele Bien

Title: Gabriele Bien: Innovator in Aminoanthraquinone Preparation

Introduction

Gabriele Bien is a notable inventor based in Munich, Germany. He has made significant contributions to the field of chemistry, particularly in the preparation of aminoanthraquinones. His innovative approach has led to advancements in the synthesis of these important compounds.

Latest Patents

Gabriele Bien holds 1 patent for his work titled "Preparation of aminoanthraquinones from nitroanthraquinones." This patent describes a method for reacting a nitroanthraquinone with ammonia in a solvent at elevated temperatures to produce the corresponding aminoanthraquinone. The process is enhanced by conducting the reaction in the presence of an ammonium halide, such as ammonium chloride or ammonium bromide. The solvent used in this reaction can include water, nitrobenzene, a glycol, an acid amide, or sulfolane.

Career Highlights

Gabriele Bien is associated with Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His work at Bayer has allowed him to focus on innovative chemical processes that have practical applications in various industries.

Collaborations

Throughout his career, Gabriele Bien has collaborated with notable individuals, including Hans-Samuel Bien, who is now deceased, and Dorothee Bien. These collaborations have contributed to the advancement of his research and the successful development of his patented processes.

Conclusion

Gabriele Bien's contributions to the field of chemistry, particularly through his patent on aminoanthraquinone preparation, highlight his innovative spirit and dedication to advancing chemical synthesis. His work continues to influence the industry and inspire future research.