α-Oxo-Ketenimines from Isocyanides and α-Haloketones: Synthesis and Divergent Reactivity
作者:Mathias Mamboury、Qian Wang、Jieping Zhu
DOI:10.1002/chem.201703458
日期:2017.9.18
β-Hydride elimination at will: Reaction of α-haloketones with isocyanides in the presence of a catalytic amount of Pd(OAc)2 afforded α-oxo-ketenimines that can be further converted to 5-aminopyrazoles, tetrazole, β-keto amidines and enaminone in good to excellent yields.
随意消除β-氢化物:在催化量的Pd(OAc)2存在下,α-卤代酮与异氰酸酯反应,得到α-氧代-酮亚胺,可以进一步转化为5-氨基吡唑,四唑,β-酮am和烯胺酮的收率好至极好。