Divergent Synthesis of α,α-Dihaloamides through α,α-Dihalogenation of β-Oxo Amides by Using<i>N</i>-Halosuccinimides
作者:Jia Wang、Hongtao Li、Dingyuan Zhang、Peng Huang、Zikun Wang、Rui Zhang、Yongjiu Liang、Dewen Dong
DOI:10.1002/ejoc.201300341
日期:2013.8
An efficient and divergent one-pot synthesis of α,α-dihaloamides from readily available β-oxo amides based on the selection of reaction conditions is reported. α,α-Dihalo-β-oxo amides were produced by treating β-oxo amides with N-chlorosuccinimide (NCS) or N-bromosuccinimide (NBS) in water at room temperature, whereas α,α-dihaloacetamides were synthesized by subjecting β-oxo amides to NCS or NBS in
报道了基于反应条件的选择,从容易获得的 β-氧代酰胺中高效且多样化的一锅法合成 α,α-二卤代酰胺。α,α-二卤代-β-氧代酰胺是通过在室温下用 N-氯代琥珀酰亚胺 (NCS) 或 N-溴代琥珀酰亚胺 (NBS) 在水中处理 β-氧代酰胺来生产的,而 α,α-二卤代乙酰胺是通过使在回流下在乙醇中将氧代酰胺转化为 NCS 或 NBS。