Hang Zhao

Title: Innovations by Inventor Hang Zhao

Introduction

Hang Zhao is an accomplished inventor based in Westborough, MA (US). She has made significant contributions to the field of chemistry, particularly in the preparation of chiral compounds. With a total of three patents to her name, Zhao's work is recognized for its innovative approaches and practical applications.

Latest Patents

One of Hang Zhao's latest patents is focused on the "Preparation of chiral amides and amines." This invention provides a convenient method for converting oximes into enamides without the use of metallic reagents. As a result, it minimizes the production of metallic waste, making the process more environmentally friendly. The enamides produced are useful precursors to amides and amines. The invention also outlines a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation using a chiral hydrogenation catalyst. Selected embodiments of the invention include methods of preparing amides and amines that feature the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.

Career Highlights

Hang Zhao is currently employed at Sunovion Pharmaceuticals Inc., where she continues to innovate and develop new chemical processes. Her work has been instrumental in advancing the field of pharmaceutical chemistry, particularly in the synthesis of chiral compounds.

Collaborations

Throughout her career, Hang Zhao has collaborated with notable colleagues, including Stefan G Koenig and Charles P Vandenbossche. These collaborations have further enriched her research and contributed to the success of her inventions.

Conclusion

Hang Zhao's contributions to the field of chemistry, particularly in the preparation of chiral amides and amines, highlight her innovative spirit and dedication to advancing scientific knowledge. Her work at Sunovion Pharmaceuticals Inc. and her collaborations with esteemed colleagues underscore her impact in the industry.