A novel preparation of thiazolo[5,4-<i>c</i>]pyridines and the synthesis of some imidazo[4,5-<i>c</i>]pyridines and oxazolo[4,5-<i>c</i>]pyridines
作者:Allen S. Katner、Raymond F. Brown
DOI:10.1002/jhet.5570270316
日期:1990.3
Diethoxymethyl acetate was used to cyclize o-disubstituted aminopyridines to oxazolo[4,5-c]pyridines and imidazo[4,5-c]pyridines. All the possible imidazole-methylated imidazo[4,5-c]pyridines were prepared. A novel synthesis of 2-substituted thiazolo[5,4-c]pyridines and 4-amino-3-pyridinethiol was discovered.
用二乙氧基乙酸甲酯将邻-二取代的氨基吡啶环化为恶唑并[4,5- c ]吡啶和咪唑并[4,5- c ]吡啶。制备了所有可能的咪唑甲基化的咪唑并[4,5- c ]吡啶。发现了2-取代的噻唑并[5,4- c ]吡啶和4-氨基-3-吡啶硫醇的新型合成方法。
A Ni(Hapt)(2) complex, apt = 4-amino-3-pyridinethiolate, is isolated and characterized by X-ray crystallography, cyclic voltammetry, and UV-Vis spectroscopy.
SMITH, KEITH;LINDSAY, CHARLES;MORRIS, IAN K., CHEM. AND IND.,(1988) N 9, 302-303