This inventor holds 2 USPTO granted patents. Top assignee: Takasago International Corporation. Active years: 1999-2009.
Location History:
- Hiratsuka, JP (1999)
- Tokyo, JP (2009)
Company Filing History:
Years Active: 1999-2009
Title: Noburo Sayo: Innovator in Transition Metal Complexes
Introduction
Noburo Sayo is a distinguished inventor based in Tokyo, Japan. He has made significant contributions to the field of chemistry, particularly in the development of transition metal complexes. With a total of 2 patents, his work has advanced the understanding and application of asymmetric synthesis.
Latest Patents
Sayo's latest patents include a novel transition metal complex and a process for producing optically active alcohol. The transition metal complex, preferably a ruthenium-phosphine or rhodium-phosphine complex, is effectively usable in various asymmetric syntheses. It is particularly effective in the asymmetric hydrogenation of various ketones. The complex features a ligand obtained by introducing a diarylphosphino group into the 2- and 2'-positions of diphenyl ether, benzophenone, or benzhydrol. Additionally, it includes an optically active 1,2-diphenylethylenediamine coordinated to it. The process utilizes this complex as an asymmetric hydrogenation catalyst to produce optically active alcohols with high optical purity and yield.
Career Highlights
Noburo Sayo is currently associated with Takasago International Corporation, where he continues to innovate in the field of chemistry. His work has been pivotal in enhancing the efficiency of asymmetric reactions, particularly in the production of chiral compounds.
Collaborations
Sayo has collaborated with notable colleagues, including Tohru Yokozawa and Koichi Mikami. Their combined expertise has contributed to the advancement of research in transition metal complexes.
Conclusion
Noburo Sayo's contributions to the field of chemistry, particularly through his innovative patents, have established him as a key figure in the development of transition metal complexes. His work continues to influence the landscape of asymmetric synthesis and catalysis.