Formal [4+1] Annulation of Cyclopropyl Amides and Water Mediated by Lewis Acid: A Novel Entry to γ-Butyrolactones
作者:Rui Zhang、Dewen Dong、Dingyuan Zhang、Yongjiu Liang
DOI:10.1055/s-0031-1290971
日期:2012.6
synthesis of substituted γ-butyrolactones from cyclopropyl amides mediated by the Lewis acid SnCl4·5H2O is reported. A mechanism involving a tandem ring-opening reaction and intramolecular cyclization reaction is proposed. An efficient one-pot synthesis of substituted γ-butyrolactones from cyclopropyl amides mediated by the Lewis acid SnCl4·5H2O is reported. A mechanism involving a tandem ring-opening reaction
摘要 报道了由路易斯酸SnCl 4 ·5H 2 O介导的由环丙基酰胺有效地一锅合成取代的γ-丁内酯。提出了一种涉及串联开环反应和分子内环化反应的机理。 报道了由路易斯酸SnCl 4 ·5H 2 O介导的由环丙基酰胺有效地一锅合成取代的γ-丁内酯。提出了一种涉及串联开环反应和分子内环化反应的机理。