Iodonium Ylides Enable the Direct Installation of Hydroxylamines and Oximes into a Broad Range of Alkenes
作者:Liang Zhang、Zhiguo Zhao、Wei Wang、Shuya Liu、Yao Wang
DOI:10.1021/acs.orglett.9b03534
日期:2019.11.15
Described herein is an unprecedented method that enables the installation of hydroxylamines and oximes into a broad range of alkenes with iodonium ylides. For the first time, the single electron transfer process between iodonium ylides and oxygen-based Lewis bases was demonstrated in this transformation.
MUKHERJEE D.; DUNN L. C.; HOUK K. N., J. AMER. CHEM. SOC., 1979, 101, NO 1, 251-252
作者:MUKHERJEE D.、 DUNN L. C.、 HOUK K. N.
DOI:——
日期:——
Highly Enantioselective Reduction of β,β-Disubstituted Aromatic Nitroalkenes Catalyzed by <i>Clostridium sporogenes</i>
作者:Anna Fryszkowska、Karl Fisher、John M. Gardiner、Gill M. Stephens
DOI:10.1021/jo800124v
日期:2008.6.1
This is the first report of the use of Clostridium sporogenes extracts for enantioselective reduction of C═C double bonds of β,β-disubstituted (1) and α,β-disubstituted nitroalkenes (3). Crude enzyme preparations reduced aryl derivatives 1a−e and 1h, in 35−86% yield with ≥97% ee. Reduction of (E)- and (Z)-isomers of 1c gave the same enantiomer of 2c (≥99% ee). In contrast, α,β-disubstituted nitroalkene