Phenylacetone as Building Blocks in Heterocyclic Synthesis: Synthesis of Polyfunctionally-Substituted Pyridines, and fused Pyridines
作者:A. M. Hussein、E. A. Ishak、A. A. Atalla、S. Abdel Hafiz、M. H. Elnagdi
DOI:10.1080/10426500701542858
日期:2007.10.18
Compound 14a – d also prepared from the condensation of 5a with the aromatic aldehydes under the same condition. Reflux of thienopyridine derivatives 9a – d with triethylorthoformat, acetic anhydride, carbon disulfide and sodium nitrite to give compounds 19 – 23 , respectively. The aminopyrazole 12 reacted with dimethylaminopropiophenone hydrochloride 24 or enaminone 30 in refluxing DMF to yield compound