Quiroga Jairo, Gálvez Jaime, Abonia Rodrigo, Insuasty Braulio, Ortíz Alejandro, Cobo Justo, Nogueras Manuel
Heterocyclic Compounds Research Group, Department of Chemistry, Universidad del Valle, Cali 760032, Colombia.
Department of Inorganic and Organic Chemistry, Universidad de Jaén, Jaén 23071, Spain.
Molecules. 2014 Apr 4;19(4):4284-300. doi: 10.3390/molecules19044284.
Diastereoselective reactions between 4-formylpyrazoles, N-substituted maleimides and glycine derivates led to new series of pyrazolyldipyrrolo [3,4-a:3',4'-f]pyrrolizines and pyrazolylpyrrolo[3,4-c]pyrroles in good yields. The reactions proceeded by a domino process through azomethine ylides formed in situ via a 1,3-dipolar cycloaddition reaction.
4-甲酰基吡唑、N-取代马来酰亚胺与甘氨酸衍生物之间的非对映选择性反应以良好的产率生成了一系列新型的吡唑基二吡咯并[3,4-a:3',4'-f]吡咯嗪和吡唑基吡咯并[3,4-c]吡咯。反应通过多米诺过程进行,该过程经由1,3-偶极环加成反应原位形成的甲亚胺叶立德。