作者:Takashi Abe、Eiji Hayashi、Hajime Baba
DOI:10.1016/s0022-1139(00)00267-0
日期:2000.10
fluorination due to the presence of bulky N-alkyl group was not observed as a result of the ECF of these aliphatic secondary amines. It was also found that the change of the initial solute concentration of N,N-di-n-propylamine did not affect on the product yields, which is usually observed for cyclic secondary amines. Several F-(N-fluoro-N,N-dialkylamines) were treated with triphenylphosphine for conversion into
电化学氟化(ECF)已审查六个脂族仲胺:Ñ,ñ -二乙胺,Ñ乙基,ñ - Ñ丙胺,Ñ,ñ -二Ñ丙胺,Ñ乙基,ñ -异-丙胺,ñ,ñ -二异丙胺,和ñ -甲基,ñ - ñ丁胺。从这些胺中发现不仅是相应的F-(N-氟-N,N(-二烷基胺)以及具有相同碳原子数的F-亚胺以低收率形成。这些脂肪族仲胺的ECF结果表明,未发现由于存在庞大的N-烷基而导致氟化过程中C–N键断裂的抑制作用(阻断作用)。还发现,N,N-二-正丙基胺的初始溶质浓度的变化不影响产物的产率,这通常是在环状仲胺中观察到的。几种F-(N-氟-N,N用三苯基膦处理β-二烷基胺,以转化成相应的F-亚胺。当在F-(N-氟代-二烷基胺)中存在两个不同的烷基时,在该脱氟过程中仅在具有更长链长的烷基的位置上产生亚胺键。