Cobalt(I)-catalyzed [6π+2π]-cycloaddition of allenes to N-carbethoxy(phenoxy)azepines for the synthesis of 9-azabicyclo[4.2.1]nona-2,4-dienes
作者:Gulnara N. Kadikova、Vladimir A. D’yakonov、Ramil N. Nasretdinov、Lilya U. Dzhemileva、Usein M. Dzhemilev
DOI:10.1016/j.tet.2020.130996
日期:2020.3
The [6π+2π]-cycloaddition of allenes to N-carbethoxyazepine or N-carbophenoxyazepine catalyzed by the Co(acac)2(dppe)/Zn/ZnI2 system was performed for the first time and gave previously unknown substituted 9-azabicyclo[4.2.1]nona-2,4-dienes and 16-azatricyclo[9.4.1.02,10]hexadeca-2,12,14-trienes in 75–95% yields. The structures of the resulting azacyclic compounds were reliably proved using NMR spectroscopy
[6π+2π]的-环丙二烯衍生物与N- carbethoxyazepine或N- carbophenoxyazepine由钴(ACAC)催化2(DPPE)/锌/ ZnI 2被首次执行系统,给以前未知的取代的9-氮杂双环[ 4.2.1] nona-2,4-dienes和16-氮杂三环[9.4.1.0 2,10 ] hexadeca-2,12,14-三烯的产率为75–95%。使用NMR光谱法和X射线衍射分析法可靠地证实了所得氮杂环化合物的结构。所获得的9-氮杂双环[4.2.1] nona-2,4-二烯和16-氮杂三环[9.4.1.0 2,10 ]十六烷基-2,12,14-三烯在体外对Jurkat,K562,U937具有较高的抗肿瘤活性。和HL60癌细胞系。