Cu(OTf)<sub>2</sub>–Phosphoric Acid-Catalyzed Tandem Oxa-Nazarov Cyclization and Dibromination of Conjugated 1,2-Diketones
作者:Hongchao Yin、Yuan Tian、Chenxi Guo、Ran Song、Daoshan Yang、Jian Lv
DOI:10.1021/acs.joc.3c01941
日期:2023.11.17
A facile tandem oxa-Nazarov cyclization and dibromination has been developed. The combination of Cu(OTf)2 and diphenyl phosphate (DPP-H) was found to synergistically promote the coupling of conjugated 1,2-diketones and N-bromosuccinimide to form 2,4-dibromo-3(2H)-furanones in good yields.
已开发出一种简便的串联氧杂-纳扎罗夫环化和二溴化反应。 Cu(OTf) 2和磷酸二苯酯 (DPP-H) 的组合可协同促进共轭 1,2-二酮和N-溴代琥珀酰亚胺偶联,形成 2,4-二溴-3(2 H) -呋喃酮。良好的产量。