New synthetic technology for the construction of N-hydroxyindoles and synthesis of nocathiacin I model systems
作者:K.C. Nicolaou、Anthony A. Estrada、Graeme C. Freestone、Sang Hyup Lee、Xavier Alvarez-Mico
DOI:10.1016/j.tet.2007.03.072
日期:2007.7
nucleophilic additions to in situ generated alpha,beta-unsaturated nitrones (III) through carbon-carbon and carbon-heteroatom bond formation. The new synthetic technology was applied to the synthesis of nocathiacinI (1) modelsystems (2 and 3a-c) containing the N-hydroxyindole structural motif.
Synthesis of functionalized diaryl sulfides based on regioselective one-pot cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes
作者:Muhammad A. Rashid、Nasir Rasool、Muhammad Adeel、Helmut Reinke、Christine Fischer、Peter Langer
DOI:10.1016/j.tet.2008.02.010
日期:2008.4
Functionalized diaryl sulfides were prepared based on one-potcyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes.
基于1,3-双(三甲基甲硅烷氧基)-1,3-丁二烯的一锅法环化制备官能化的二芳基硫醚。
Silicon in benzamide directed ortho metalation. Formation and reactions of benzamide benzynes
作者:K. Shankaran、V. Snieckus
DOI:10.1016/s0040-4039(01)81301-0
日期:1984.1
2-Trimethylsilyl-3-triflyl benzamide 3, undergoes fluoride-mediated 1,2-elimination to give the benzyne intermediate 4 which is trapped by cycloaddition (5), and nucleophilic reactions (6).
Aryldiazenyl Radicals from Arylazo Sulfones: Visible Light‐Driven Diazenylation of Enol Silyl Ethers
作者:Havall Othman Abdulla、Simone Scaringi、Ahmed A. Amin、Mariella Mella、Stefano Protti、Maurizio Fagnoni
DOI:10.1002/adsc.201901424
日期:2020.5.26
A versatile protocol for the diazenylation of enolsilylethers under visible light irradiation is presented herein. The reaction is based on the underused reaction of a nitrogen‐based radical (the diazenyl radical) with an enolsilylether. Arylazo sulfones were used as photoactivatable precursors of these diazenyl radicals. The resulting azaderivatives are potentially bioactive compounds as well