Organoselenium-Catalyzed Aza-Wacker Reactions: Efficient Access to Isoquinolinium Imides and an Isoquinoline N-Oxide
作者:Huimin Li、Lihao Liao、Xiaodan Zhao
DOI:10.1055/s-0039-1690103
日期:2019.9
organoselenium-catalyzed aza-Wacker reaction of olefinic hydrazones and an oxime to form isoquinolinium imides and an isoquinoline N-oxide is developed. This transformation involves a direct intramolecular C–H amination using hydrazones and an oxime as imine-type nitrogen sources. This work not only provides a new approach for the construction of isoquinoline derivatives, but also expands the scope of nitrogen
Visible-light-induced oxidant/additive-free atom-economic synthesis of multifunctionalized cyclopropanes <i>via</i> energy transfer
作者:Babasaheb Sopan Gore、Jeh-Jeng Wang
DOI:10.1039/d3cc01021j
日期:——
Herein we describe intramolecular cascade reactions enabling the synthesis of bridged cyclopropanes, via the photoinduced energy-transfer catalysis of tethered conjugated dienes. Photocatalysis affords the efficientsynthesis of complex tricyclic compounds that exhibit multiple stereocenters from readily accessible starting materials that would otherwise be difficult to obtain. This single-step reaction
Photocatalyst- and transition-metal-free syntheses of furan-fused dihydroazepines by visible light
作者:Babasaheb Sopan Gore、Chiao-Ying Kuo、Jeh-Jeng Wang
DOI:10.1039/d3gc02364h
日期:——
A visible light-induced, atom-economical synthesis of furan-fused dihydroazepine derivatives under transition metal- and photocatalyst-free conditions is described.