Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Preparation of pyridines or pyrroles from .alpha.,.omega.-dinitriles

Preparation of pyridines or pyrroles from .alpha.,.omega.-dinitriles

US Patent 4521602 · Granted Jun 4, 1985

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for the separation of acids from chemical reaction mixtures by means of i2010
Method for the separation of acids from chemical reaction mixtures by means of i2008
Method for producing cyclohexane dicarboxylic acids and the derivatives thereof2008
Hydrogenation of benzenepolycarboxylic acids or derivatives thereof using a cata2005
Method for producing alkanesulfonic acids2002
Method of producing dimethyl sulfite2002
Production of polytetrahydrofuran with terminal hydroxyl groups by changing the 2001
Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by 2001
Coproduction of acetylene and hydrocyanic acid from acrylonitrile2000
Method of producing polyoxytetramethylene glycol2000
Preparation of polytetrahydrofuran with terminal hydroxyl groups using ion excha2000
Continuous industrial production of unsaturated aliphatic aldehydes in a tube bu2000