Ring expansion/opening reactions of epoxy ene-amides: access to azabicyclononene, tetrahydropyridine and tetrazole scaffolds
作者:Suraj、K. C. Kumara Swamy
DOI:10.1039/d3nj00529a
日期:——
obtained from epoxy (terminal as well as internal) benzenesulfonamide and substituted chloro-acrylaldehydes, undergo Lewis acid (BF3·OEt2) catalysed cyclisation to afford azabicyclononene, tetrahydropyridinyl benzoate or tetrahydropyridine-carbaldehyde scaffolds depending on the substrate. In the presence of Me3SiN3, substituted tetrazoles are readily obtained. Key products have been characterized by
由环氧(末端和内部)苯磺酰胺和取代的氯丙烯醛获得的烯磺酰胺经过路易斯酸 (BF 3 ·OEt 2 ) 催化环化,根据底物提供氮杂双环酮、苯甲酸四氢吡啶酯或四氢吡啶甲醛支架。在Me 3 SiN 3存在下,很容易得到取代的四唑。主要产品已通过单晶 X 射线晶体学进行表征。