Construction of <i>N</i>-Alkyl- and <i>N</i>-Arylaziridines from Unprotected Amines via C–H Oxidative Amination Strategy
作者:Yang Yu、Meijuan Li、Yong Zhang、Yonghai Liu、Lei Shi、Wei Wang、Hao Li
DOI:10.1021/acs.orglett.8b03799
日期:2019.2.15
A copper-promoted intramolecular C–H oxidative amination reaction between secondary amine (N–H) and C(sp3)–H at the benzylic position of azaarenes or α-position of ketones for the synthesis of aziridine derivatives has been developed. Moreover, a practical annulation of electron-deficient vinylarenes with an unprotected primary alkyl amine by a Yb(OTf)3–CuI relay system has also been reported. The
Divergent Synthesis of Multisubstituted Tetrahydrofurans and Pyrrolidines via Intramolecular Aldol‐type Trapping of Onium Ylide Intermediates
作者:Changcheng Jing、Dong Xing、Lixin Gao、Jia Li、Wenhao Hu
DOI:10.1002/chem.201503621
日期:2015.12.21
divergent strategy for the synthesis of multisubstituted tetrahydrofurans and pyrrolidines, starting from easily accessible β‐hydroxyketones or β‐aminoketones to react with diazo compounds. Under RhII catalysis, this transformation is proposed to proceed through a metal–carbene‐induced oxonium ylide or ammonium ylide formation followed by an intramolecular aldol‐type trapping of these active intermediates
I
<sub>2</sub>
‐Promoted Intramolecular Oxidative Cyclization of Butenyl Anilines: A Facile Route to Benzo[
<i>b</i>
]azepines
作者:Zhenyu An、Yi Ren、Yafeng Liu、Rulong Yan
DOI:10.1002/asia.202100710
日期:2021.9.20
An efficient strategy for the synthesis of benzo[b]azepine derivatives has been developed by the I2-promoted intramolecular cross-coupling/annulation of butenyl anilines. This cyclization reaction involves C−H activation and C−C bond formation. A series of benzo[b]azepine derivatives are obtained in moderate to good yields.
通过 I 2促进的丁烯基苯胺的分子内交叉偶联/环化,已经开发出一种用于合成苯并[ b ]氮杂卓的有效策略。这种环化反应涉及 C-H 活化和 C-C 键的形成。以中等至良好的收率获得了一系列苯并[ b ]氮杂衍生物。
SAHASRABUDHE, S. D.;TILAK, B. D., INDIAN J. CHEM., 1984, 23, N 10, 914-917