Facile Preparation of β-Fluoro Amines by the Reaction of Aziridines with Potassium Fluoride Dihydrate in the Presence of Bu<sub>4</sub>NHSO<sub>4</sub>
作者:Ren-Hua Fan、Yong-Gui Zhou、Wan-Xuan Zhang、Xue-Long Hou、Li-Xin Dai
DOI:10.1021/jo034895k
日期:2004.1.1
Potassiumfluoride combined with tetrabutylammonium bisulfate is an efficient reagent to convert a variety of aziridines derived from cyclic and acyclic alkenes to β-fluoro amine derivatives in high yield.
Synthesis of β-Fluoro Amides Using Partially Hydrated Nickel Difluoride as Fluorine Source
作者:Wan Zhang、Li Su、Wei Hu、Jie Zhou
DOI:10.1055/s-0032-1317157
日期:——
beta-Fluoro amides were obtained from the reactions of activated aziridines with partially hydrated nickel difluoride (NiF2 center dot nH(2)O, n < 4) in good yields (47-82%) in the presence of tetra-n-butylammonium fluoride (20 mol%), while the non-activated aziridines did not react under the same conditions.
An Efficient and Highly Regioselective Fluorination of Aziridines Using BF<sub>3</sub>·OEt<sub>2</sub>as Fluorine Source
作者:Xue-Long Hou、Chang-Hua Ding、Li-Xin Dai
DOI:10.1055/s-2004-831319
日期:——
β-Fluoro amines were prepared from the reaction of aziridines and boron trifluoride in high regioselectivity and in high yield. All three fluorine atoms of BF 3 -OEt 2 were incorporated into the products when it reacted with aziridines.