1,2-Diaza-1,3-butadienes react as Michael acceptors with nitrogen 1,3-dinucleophiles, such as arylamidines, in a one-pot heterocyclization reaction. Depending on the nature of the acyl residue at the terminal carbon of the heterodiene system, spiro pyrroloimidazole derivatives or 2-arylimidazoles can be obtained.
1,2-二氮杂-
1,3-丁二烯作为迈克尔受体与氮1,3-亲核物(如芳基酰胺)发生单锅杂环化反应。根据杂二烯体系末端碳上酰基残基的性质,可以得到螺
吡咯咪唑衍
生物或 2-芳基
咪唑。