Premium
Some 4(1h) Pyridylidene Compounds II Synthesis and Structure of N,N ‐Conjugated‐4‐Pyridine Compounds
Author(s) -
Kuo Kung Tu
Publication year - 1978
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197800023
Subject(s) - methiodide , chemistry , pyridinium , iodide , pyridine , benzaldehyde , methyl iodide , chloride , methanol , medicinal chemistry , proton nmr , mass spectrum , conjugated system , stereochemistry , organic chemistry , ion , catalysis , polymer
The reaction of 4‐methylpyridine and its methiodide with p‐N, N ‐dimethylamino‐benzaldehyde gave 4‐ p‐N, N ‐dimethylaminostyrylpyridine (I) and 4‐ p‐N, N ‐dimethylaminostyrylpyridine methiodide (II), respectively, II was also prepared by methylation of I with methyl iodide in methanol. The pyridylidene structure of II, N ‐benzyl‐4‐( p‐N, N ‐dimethylaminophenyl) pyridinium chloride (IV a ) and its methiodide (V a ) was discussed in terms of UV, NMR and mass spectra.