Direct and Stereospecific Synthesis of
<i>N</i>
‐H and
<i>N</i>
‐Alkyl Aziridines from Unactivated Olefins Using Hydroxylamine‐
<i>O</i>
‐Sulfonic Acids
作者:Zhiwei Ma、Zhe Zhou、László Kürti
DOI:10.1002/anie.201705530
日期:2017.8.7
A RhII-catalyzed direct and stereospecific N-H- and N-alkyl aziridination of olefins is reported that uses hydroxylamine-O-sulfonic acids as inexpensive, readily available, and nitro group-free aminating reagents. Unactivated olefins, featuring a wide range of functional groups, are converted into the corresponding N-H or N-alkyl aziridines in good to excellent yields. This operationally simple, scalable
Reactions of cyclooctene compounds with fluorinating agents
作者:G. Alvernhe、A. Laurent、G. Haufe
DOI:10.1016/s0022-1139(00)81933-8
日期:1986.11
9-oxabicyclo[6.1.0] non-4-ene compared to the corresponding aziridine shows trans- opening of the epoxide with the almost neutral fluorinating reagent (Et3N, 3HF) but no reaction with the aziridine. With Olah's reagent double bond participation is observed in the reaction of the epoxide while a stereoselective addition of HF to the double bond without participation of the aziridine ring takes place
Synthesis of β-Fluoroamines by Lewis Base Catalyzed Hydrofluorination of Aziridines
作者:Julia A. Kalow、Dana E. Schmitt、Abigail G. Doyle
DOI:10.1021/jo300433a
日期:2012.4.20
Lewis base catalysis promotes the in situ generation of amine-HF reagents from benzoyl fluoride and a non-nucleophilic alcohol. The hydrofluorination of aziridines to provide beta-fluoroamines using this latent HF source is described. This protocol displays a broad scope with respect to aziridine substitution and N-protecting groups. Examples of regio- and diastereoselective ring opening to access medicinally relevant beta-fluoroamine building blocks are presented.
BARRELLE M.; APPARU M., TETRAHEDRON, 1977, 33, NO 11, 1309-1319
作者:BARRELLE M.、 APPARU M.
DOI:——
日期:——
ALVERNHE G.; LAURENT A.; HAUFE G., J. FLUOR. CHEM., 34,(1986) N 1, 147-156