Novel (2-amino-4-arylimidazolyl)propanoic acids and pyrrolo[1,2-<i>c</i>]imidazoles via the domino reactions of 2-amino-4-arylimidazoles with carbonyl and methylene active compounds
作者:Victoria V Lipson、Tetiana L Pavlovska、Nataliya V Svetlichnaya、Anna A Poryvai、Nikolay Yu Gorobets、Erik V Van der Eycken、Irina S Konovalova、Svetlana V Shiskina、Alexander V Borisov、Vladimir I Musatov、Alexander V Mazepa
DOI:10.3762/bjoc.15.101
日期:——
midazol-5-yl)-3-arylpropanoic acids. The interaction of 2-amino-4-arylimidazoles with aromatic aldehydes or isatins and acyclic methylene active compounds has led to the formation of pyrrolo[1,2-c]imidazole-6-carbonitriles, pyrrolo[1,2-с]imidazole-6-carboxylates and spiro[indoline-3,7'-pyrrolo[1,2-c]imidazoles], which can be considered as the analogues of both 3,3’-spirooxindole and 2-aminoimidazole
2-氨基-4-芳基咪唑,芳族醛和Meldrum酸之间出乎意料的未催化反应,选择性地导致了相应的Knoevenagel-Michael加合物在咪唑片段中包含一个游离氨基。衍生自Meldrum酸的加合物已顺利转化为1,7-二芳基-3-氨基-6,7-二氢-5 H-吡咯并[1,2 - c ]咪唑-5-酮和3-(2-氨基-4-芳基-1 H-咪唑-5-基)-3-芳基丙酸。2-氨基-4-芳基咪唑与芳香族醛或isatins和无环亚甲基活性化合物的相互作用导致形成吡咯并[1,2 - c ]咪唑-6-腈,吡咯并[1,2- с ]咪唑- 6-羧酸盐和螺[吲哚啉-3,7'-吡咯并[1,2- c[]咪唑],可以被视为3,3'-螺并恶唑和2-氨基咪唑海洋海绵生物碱的类似物。