CuI-Catalyzed Suzuki−Miyaura and Sonogashira Cross-Coupling Reactions Using DABCO as Ligand
作者:Jin-Heng Li、Ji-Lan Li、De-Ping Wang、Shao-Feng Pi、Ye-Xiang Xie、Man-Bo Zhang、Xi-Chao Hu
DOI:10.1021/jo0623742
日期:2007.3.1
presence of TBAB, CuI-catalyzedSuzuki−Miyauracross-coupling of vinyl halides and aryl halides with arylboronic acids was conducted smoothly to afford the corresponding diarylethenes and polyaryls in moderate to good yields usingDABCO (1,4-diazabicyclo[2.2.2]octane) as the ligand. We also found that the inexpensive CuI/DABCO catalytic system was effective for Sonogashiracross-couplings of aryl halides
Stereoselective Synthesis of (Z)-Enynes via Pd(II)/CuI(I)-Catalyzed Cross-Coupling Reaction of bis-Vinylic Tellurides with 1-Alkynes
作者:Gilson Zeni、Paulo H. Menezes、Angélica Venturini Moro、Antonio L. Braga、Claudio C. Silveira、Hélio A. Stefani
DOI:10.1055/s-2001-16799
日期:——
(Z)-bis-Vinylic tellurides undergo direct coupling reaction with terminal alkynes in the presence of palladium (II) at room temperature to give (Z)-enyne systems in good yields.
The coupling of butylvinyltellurides with organometallic reagents catalysed by nickel complexes
作者:Cristiano Raminelli、João Gargalaka、Cláudio C. Silveira、João V. Comasseto
DOI:10.1016/j.tet.2007.06.057
日期:2007.9
Vinylic tellurides couple efficiently with sp, sp(2) and sp(3) hybridised organometallic compounds (Li, MgX and Zn species) in the presence of dichloro-bis( triphenylphosphine) nickel(II) as catalyst. (c) 2007 Elsevier Ltd. All rights reserved.
Coupling of butyl vinyl tellurides with metal acetylides catalyzed by nickel complexes
作者:Cristiano Raminelli、João Gargalaka、Cláudio C. Silveira、João V. Comasseto
DOI:10.1016/j.tetlet.2004.04.120
日期:2004.6
Z-Vinylic tellurides react with metal acetylides under nickel complexes catalysis to give Z-enynes and Z-enediynes in good yields. (C) 2004 Elsevier Ltd. All rights reserved.
Stereoselective Synthesis of Enynes by Nickel-Catalyzed Cross-Coupling of Divinylic Chalcogenides with Alkynes
作者:Claudio C. Silveira、Antonio L. Braga、Adriano S. Vieira、Gilson Zeni
DOI:10.1021/jo0261707
日期:2003.1.1
(Z,Z)- and (E,E)-divinylic selenides and telurides undergo direct coupling with terminal alkynes in the presence of a nickel/CuI catalyst at room temperature to give (Z)- and (E)-enyne systems in good yields and with complete retention of configuration.