Diazabutadienes in heterocyclic synthese
โ
Bir Sain; Satyendra P. Singh; Jagir S. Sandhu
๐
Article
๐
1991
๐
Elsevier Science
๐
French
โ 101 KB
4+2) Cycloaddition reactions of 1-aryl-4-dimethylamino-2-phenyl-1,3-diazabutadienes with 2-oxazolin-5-ones leading to pyrimidin-6-ones are reported. Cycloaddition reactions of azadienes have received considerable attention in heterocyclic synthesis I. In this context 1~2-and 1,4-diazabutadienes hav