首页|Chemodivergent annulations of allenyl imides and β,y-enones switched by nucleophilic phosphine and amine catalysts
Chemodivergent annulations of allenyl imides and β,y-enones switched by nucleophilic phosphine and amine catalysts
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Nucleophilic phosphine and amine catalyst-switched chemodivergent[4+1]and[3+3]annulations of allenyl imides and β,γ-enones have been developed,furnishing highly substituted 2-cyclopentenone and 2-pyranone derivatives in moderate to excellent yields.Two plausible reaction mechanisms involving two different ketene intermediates have been proposed to explain the observed chemoselectivity.Moreover,by virtue of the α,β-enone substructure of the[4+1]adducts,1,3-dipolar cycloaddition of nitrile imines has been studied in one-pot to provide various fused pyrazoline derivatives.
NETL
NSTL
万方数据
