Method of Synthesis of Arylsulfur Trifluorides and Use as in situ Deoxofluorination Reagent
申请人:Dolbier, JR. William R.
公开号:US20120083627A1
公开(公告)日:2012-04-05
The invention is a method of synthesizing Arylsulfur Trifluorides, such as Fluolead, by reacting BR
2
and KF (or suitable alkali metal fluoride) in acetonitrile (or other suitable solvent). The invention also comprises using the Fluolead (or its substitutes), thus prepared, in situ as deoxofluorination reagents with a suitable aldehyde, ketone, or alcohol such as one selected from the group consisting of benzaldehyde Benzaldehyde, p-Bromobenzaldehyde, p-Tolualdehyde, Acetophenone, 2-Butanone, or Isobutyraldehyde, wherein the mixture is heated to reflux until completion. The respective products are then isolated after extraction by hexane and destruction of the sulfinyl fluoride co-product.
这项发明是一种合成芳基硫三氟化物(如Fluolead)的方法,通过在乙腈(或其他适当溶剂)中将BR2和KF(或适当的碱金属氟化物)反应而得。该发明还包括使用以此方式制备的Fluolead(或其替代物)作为脱氟化试剂与适当的醛、酮或醇(如苯甲醛、对溴苯甲醛、对甲基苯甲醛、苯乙酮、2-丁酮或异丁醛等)在混合物加热至沸腾直至反应完成。然后,通过己烷提取并破坏亚砜氟化物共产物后,分别分离所得的产物。