Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Improved process and catalyst for the preparation of 2,2' bipyridyls

Improved process and catalyst for the preparation of 2,2' bipyridyls

US Patent 5221747 · Granted Jun 22, 1993

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Chichibabin aminations of pyridine bases1998
Process for the preparation of 2,2'-bipyridyls1995
Process for the preparation of 2,2'-bipyridyls1995
Process for the preparation of 2,2'-bipyridyls1995
Chichibabin reaction1991
Process and catalyst for the preparation of 2,2'-bipyridyls1990
Process and catalyst for the preparation of 2,2'-bipyridyls1990
Process for preparing 2-alkylamino- and 2-amino-5-alkylpyridines1983
Chichibabin reaction1983
Substituted 2,2'-bipyridyl compounds and process for preparing same1981