piperidines has been researched along with acetic-anhydride* in 2 studies
2 other study(ies) available for piperidines and acetic-anhydride
| Article | Year |
|---|---|
Development of repaglinide microspheres using novel acetylated starches of bitter and Chinese yams as polymers.
Tropical starches from Dioscorea dumetorum (bitter) and Dioscorea oppositifolia (Chinese) yams were acetylated with acetic anhydride in pyridine medium and utilized as polymers for the delivery of repaglinide in microsphere formulations in comparison to ethyl cellulose. Acetylated starches of bitter and Chinese yams with degrees of substitution of 2.56 and 2.70 respectively were obtained. Acetylation was confirmed by FTIR, Topics: Acetic Anhydrides; Acetylation; Carbamates; Cellulose; Dioscorea; Drug Carriers; Drug Compounding; Drug Liberation; Factor Analysis, Statistical; Hypoglycemic Agents; Kinetics; Microspheres; Particle Size; Piperidines; Plant Extracts; Pyridines; Solutions; Starch; Thermodynamics | 2017 |
Copper-catalyzed Perkin-acyl-Mannich reaction of acetic anhydride with pyridine: expeditious entry to unconventional piperidines.
A regioselective introduction of a methoxycarbonyl methyl group at the C(2) position of unsubstituted pyridine has been accomplished with catalytic amounts of copper(II) triflate in mild reaction conditions. The N-acetyl-1,2-dihydropyridyl acetic acid methyl ester obtained is a valuable building block for the synthesis of new polyfunctionalized piperidine derivatives bearing unconventional substitution patterns. Topics: Acetic Anhydrides; Catalysis; Copper; Molecular Structure; Piperidines; Pyridines; Stereoisomerism | 2011 |