Synthesis of pyrrolo[3,4-b]pyrroles and perhydrothiazolo[3′,4′-2,3]pyrrolo[4,5-c]pyrroles
作者:Mahalingam Poornachandran、Raghavachary Raghunathan
DOI:10.1016/j.tet.2008.04.063
日期:2008.6
alkenyl aldehydes with some cyclic and acyclic amino acids have been studied. Some key sulfonamides having strategically positioned aldehyde and olefinic tether have been synthesized and effectively subjected to intramolecular azomethine ylide cycloaddition reaction resulting in a series of pyrrolo[3,4-b]pyrrole and its N-1–C-2 derivatives, and a series of novel heterotricyclic compounds, perhydrothiazolo[3′
研究了各种N-链烯基醛与一些环状和非环状氨基酸的1,3-偶极环加成反应。合成了一些具有关键醛和烯丙基链位置的关键磺酰胺,并对其进行了有效的分子内偶氮甲内酯环加成反应,生成了一系列吡咯并[3,4- b ]吡咯及其N-1–C-2衍生物,以及一系列新型杂环三环化合物perhydrothiazolo [3',4'-2,3] pyrrolo [4,5- c ]吡咯,收率高。发现分子内环加成反应在所有情况下都是高度立体选择性的,仅形成顺式稠合的环加合物。