Synthesis of hydrofluorocycloolefins through dehydrofluorination of hydrofluorocycloalkanes in amide solvents
作者:Wenni Zhang、Chengping Zhang、Qin Guo、Fengniu Lu、Hengdao Quan
DOI:10.1016/j.jfluchem.2019.06.008
日期:2019.10
Hydrofluorocycloolefins have outstanding economic and environmental advantages, as well as huge application potentials owing to their zero ozone depletion potentials (ODP) values and low global warming potentials (GWP) values. The synthesis of hydrofluorocycloolefins through dehydrofluorination of hydrohalocycloalkanes in N,N-dimethylformamide (DMF) or N,N-dimethylacetamide (DMAC) was investigated
氢氟环烯烃具有出色的经济和环境优势,并且由于其零臭氧消耗势(ODP)值和较低的全球变暖势(GWP)值而具有巨大的应用潜力。研究了在N,N-二甲基甲酰胺(DMF)或N,N-二甲基乙酰胺(DMAC)中通过氢卤代环烷烃的脱氟化氢合成氢氟环烯烃的方法。发现CHF的存在对于有效消除HF至关重要。使用含有CHF基团的试剂的反应进行得非常好,而对于没有CHF基团的反应物,消除则非常困难。基于这些结果,提出了合理的反应机理。