Metal-free synthesis of 2-alkenyl/alkynyl-5-nitropyridines using a three-component ring transformation
A metal-free, facile, and efficient protocol for synthesizing a series of 2-alkenyl/alkynyl-5-nitropyridines was developed by using a three-component ring transformation of 1-methyl-3,5- dinitro-2-pyridone with α,β-unsaturated ketones and ammonium acetate
Le, Song Thi,Asahara, Haruyasu,Nishiwaki, Nagatoshi