[EN] CYCLOALKYL-FUSED TETRAHYDROQUINOLINES AS CRTH2 RECEPTOR MODULATORS [FR] TÉTRAHYDROQUINOLINES À FUSION CYCLOALKYLE EN TANT QUE MODULATEURS DE L'ACTIVITÉ DU RÉCEPTEUR CRTH2
[EN] CYCLOALKYL-FUSED TETRAHYDROQUINOLINES AS CRTH2 RECEPTOR MODULATORS [FR] TÉTRAHYDROQUINOLINES À FUSION CYCLOALKYLE EN TANT QUE MODULATEURS DE L'ACTIVITÉ DU RÉCEPTEUR CRTH2
Dirhodium(II)-Catalyzed (3 + 2) Cycloaddition of the <i>N</i>-Arylaminocyclopropane with Alkene Derivatives
作者:Yi Kuang、Yangbo Ning、Jin Zhu、Yuanhua Wang
DOI:10.1021/acs.orglett.8b00904
日期:2018.5.4
Several (3 + 2) cycloaddition reactions catalyzed by dirhodium(II) complexes between N-arylaminocyclopropane and alkenes derivative have been developed. Preliminary mechanism studies suggest that dirhodium(II) complexes may decrease the bond-dissociation energy (BDE) of the N–H bond of N-arylaminocyclopropanes for N–H bond activation, thus facilitating the formation of N-centered radicals by loss of
Red-Light-Induced N,N′-Dipropyl-1,13-dimethoxyquinacridinium-Catalyzed [3+2] Cycloaddition of Cyclopropylamines with Alkenes or Alkynes
作者:Thomas L. Gianetti、Savannah M. Stull、Liangyong Mei
DOI:10.1055/a-1665-9220
日期:2022.7
A red-light-mediated [3+2] annulation of cyclopropylamines with akenes or alkynes in the presence of N,N′-dipropyl-1,13-dimethoxyquinacridinium is reported. An array of cyclopentane or cyclopentene derivatives with diverse functional groups have been obtained in moderate to excellent yields under mild conditions.
Visible-Light Organophotoredox-Mediated [3 + 2] Cycloaddition of Arylcyclopropylamine with Structurally Diverse Olefins for the Construction of Cyclopentylamines and Spiro[4.<i>n</i>] Skeletons
作者:Zhengshan Luo、Bowen Cao、Tianhang Song、Zequn Xing、Jun Ren、Zhongwen Wang
DOI:10.1021/acs.joc.2c02061
日期:2022.11.18
We developed a visible-light-mediated [3 + 2] cycloaddition of arylcyclopropylamine with structurally diverse olefins using QXPT-NPh as a highly efficient organic photoredox catalyst. We first achieved the use of various alkyl-substituted alkenes in intermolecular [3 + 2] cycloadditions with cyclopropylamine. We also developed a general and efficient strategy for the construction of structurally diverse