Alkanoate esters are found to couple with various nitriles to give (Z)-3-amino-2-alkenoates in good yields with the aid of a magnesium amide prepared by the reaction of ethylmagnesium bromide and diisopropylamine. The C–C bond forming reaction was applied to (2S,3S)-2,3-(cyclohexylidenedioxy)butanenitrile and the resulting adduct was successfully converted into N-benzoyl-L-daunosamine in 41% overall
HIYAMA, TAMEJIRO;KOBAYASHI, KAZUHIRO, TETRAHEDRON LETT., 1982, 23, N 15, 1597-1600
作者:HIYAMA, TAMEJIRO、KOBAYASHI, KAZUHIRO
DOI:——
日期:——
SOSNOVSKIX V. YA.; OVSYANNIKOV I. S.; NIKOLSKIJ A. L., ZH. ORGAN. XIMII, 22,(1986) N 8, 1775-1776
作者:SOSNOVSKIX V. YA.、 OVSYANNIKOV I. S.、 NIKOLSKIJ A. L.
DOI:——
日期:——
PhIO/Et<sub>3</sub>N ⋅ 3HF-Mediated Formation of Fluorinated 2<i>H</i>-Azirines via Domino Fluorination/Azirination Reaction of Enamines
作者:Yong Zhang、Xiaoyuan Zhao、Chen Zhuang、Senlin Wang、Daisy Zhang-Negrerie、Yunfei Du
DOI:10.1002/adsc.201800124
日期:2018.6.5
enaminones were converted to the biologically interesting fluorinated 2H‐azirines through reactions with PhIF2 generated in situ by PhIO and Et3N ⋅ 3HF in 1,2‐dichroloethane, which features the hypervalent iodine reagents‐mediated introduction of fluorine atom and formation of the 2H‐azirine skeleton under metal‐free conditions. The domino reaction is postulated to proceed via a PhIF2‐mediated oxidative