Formamide as an efficient nitrogen nucleophile for the Michael addition to nitroalkenes
摘要:
Secondary acyclic formamide serves as an efficient nucleophile to nitroalkenes to give corresponding Michael adducts in good yields. The nitro group in the adducts was useful for further heterocyclic synthesis. (c) 2006 Elsevier Ltd. All rights reserved.
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。
Formamide as an efficient nitrogen nucleophile for the Michael addition to nitroalkenes
作者:Akio Kamimura、Ayako Kadowaki、Yoshiaki Nagata、Hidemitsu Uno
DOI:10.1016/j.tetlet.2006.02.065
日期:2006.4
Secondary acyclic formamide serves as an efficient nucleophile to nitroalkenes to give corresponding Michael adducts in good yields. The nitro group in the adducts was useful for further heterocyclic synthesis. (c) 2006 Elsevier Ltd. All rights reserved.
Stereoselective intramolecular 1,3-dipolar nitrile oxide cycloaddition reaction of N-formyl-β-nitroamides
The stereoselective intramolecularnitrileoxidecycloaddition (INOC) reaction was achieved from N-formyl-β-nitroamides, which were prepared through the Michael addition of allylic formamides to nitroalkenes, and cis-pyrroroisoxazoles and trans-piperidinoisoxazoles were obtained in a stereoselective manner.