Open AccessSynthesis, Characterization and Crystal Structure of 2-Pyridinecarboxamide
Author(s) -
Kai-Jin Sun,
Zhaosheng Cai
Publication year - 2019
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22395
Subject(s) - chemistry , monoclinic crystal system , crystal structure , crystallography , picoline , oxime , stereochemistry , medicinal chemistry , pyridine
2-Pyridinecarboxamide was synthesized from 2-picoline through two-steps reaction. Initially, 2-picoline was converted into 2-cyanopyridine by ammoxidation in a stainless-steel fixed-bed reactor at 370 ºC with V2O5 loaded on TiO2 as catalyst. The 2-cyanopyridine was transformed into 2-pyridinecarboxamide through oxidation hydrolysis in basic solution using MnO2 as oxidant at 70 ºC. The final product was characterized by FT-IR, NMR and UV-visible analysis, and 2-pyridinecarboxamide in the final product was determined using HPLC. The crystal structure of 2-pyridinecarboxamide was investigated using X-ray diffraction and SHELX 2018/3 (sh) software and the result indicated that 2-pyridinecarboxamide crystallized in the monoclinic system, space group P21/n with a = 5.207(2), b = 7.097(3), c = 16.243(6) Å, V = 595.7 (4) Å3; Z = 4.