Cu(II)-Mediated One-Pot Alkoxide Conjugate Addition/Radical Cyclizations as a Versatile Method to Highly Functionalized Tetrahydrofuran Derivatives
作者:Ullrich Jahn、Dmytro Rudakov
DOI:10.1055/s-2004-822930
日期:——
The synthesis of highly functionalized 3-nitrotetrahydro-furans starting from allylic alcohols and nitroalkenes through an efficient CuCl 2 -mediated tandem anionic/radical process is reported. The one-pot reaction consists of oxa-Michael addition/SET/radical 5-exo-cyclization-ligand transfer. Functionalization of the THF ring is facile and provides diverse substituted derivatives.
Double diastereoselectivity in the intramolecular nitrile oxide-olefin cycloaddition (INOC) reaction.
作者:Hyoung Rae Kim、Hyung Jin Kim、Jetty L. Duffy、Marilyn M. Olmstead、Karin Ruhlandt-Senge、Mark J. Kurth
DOI:10.1016/s0040-4039(00)92143-9
日期:1991.1
An investigation of relative asymmetric induction and double diastereoselectivity in the intramolecularnitrile oxide-olefin cycloaddition (INOC) reaction is presented.
提出了一种相对的不对称诱导和双非对映选择性在分子内的丁腈橡胶-烯烃环加成(INOC)反应。
Stereoselective Synthesis of Bicyclic Nitrocyclopropanes by a Radical-Anion Domino Reaction
作者:Akio Kamimura、Ayako Kadowaki、Takayuki Yoshida、Ryota Takeuchi、Hidemitsu Uno
DOI:10.1002/chem.200901920
日期:2009.10.12
or β‐nitroethers in a stereoselective manner (see scheme). The present procedure involves a higher‐order domino process that includes one‐electron oxidation– radical cyclization–intramolecular SN2 reaction.
进行了新颖的一步式自由基离子环丙烷化反应,以立体选择性方式从β-硝基酰胺或β-硝基醚制备氮杂或氧杂双环[3.1.0]己烷(参见方案)。本程序涉及一个更高阶的多米诺骨牌过程,该过程包括单电子氧化-自由基环化-分子内S N 2反应。
Sequential 1,3-Dipolar Cycloadditions in the Synthesis of Bis-Isoxazolo Substituted Piperidinones
作者:Kevin Sheng-Lin Huang、Edwin H. Lee、Marilyn M. Olmstead、Mark J. Kurth
DOI:10.1021/jo991418m
日期:2000.1.1
A strategy for the efficient synthesis of novel bis-isoxazolo substituted piperidinones has been developed. The protocol consists of the Michael addition of an unsaturated alkoxide to beta-nitrostyrene followed by an intramolecular nitrile oxide cycloaddition (INOC) or an intramolecular silyl nitronate olefin cycloaddition (ISOC) to give III. Grignard addition to this isoxazoline intermediate followed