Palladium-Catalyzed <i>Ortho</i>-Silylation of Aryl Iodides with Concomitant Arylsilylation of Oxanorbornadiene: Accessing Functionalized (<i>Z</i>)-β-Substituted Vinylsilanes and Their Analogues
作者:Weiwei Lv、Si Wen、Jia Yu、Guolin Cheng
DOI:10.1021/acs.orglett.8b02106
日期:2018.8.17
A palladium-catalyzed ortho-silylation of aryliodides/arylsilylation of oxanorbornadiene/retro-Diels–Alder domino reaction was developed. Such a transformation provides access to various functionalized (Z)-β-substituted vinylsilanes with exclusive selectivity using hexamethyldisilane as a bis-silylation reagent and 2,3-dicarbomethoxy-7-oxanorbornadiene (ONBD) as an ortho-C–H activator and ethylene
Pt(II)-catalyzed hydroarylation reaction of alkynes with pyrroles and furans
作者:Juzo Oyamada、Tsugio Kitamura
DOI:10.1016/j.tet.2009.03.022
日期:2009.5
A Pt(II) catalyst showed a drastic effect on hydroarylation of alkynes with pyrroles and furans compared with Pd(OAc)(2) catalyst. The hydroarylation reactions proceeded smoothly under mild conditions to double-hydroarylation products in good yields. Mono-adducts Were formed only when the second hydroarylation was inhibited by steric hindrance Of Substrates or low reactivity of the mono-adducts. (C) 2009 Elsevier Ltd. All rights reserved.
Catalytic synthesis of renewable phenol derivatives from biobased furanic derivatives
作者:Adrien Ratier、Richail D. Moulandou-Koumba、Mélanie Anizan、Sarah Behloul、Fréderic Guegan、Gilles Frapper、Quentin Blancart Remaury、Karine De Oliveira Vigier、Jianxia Zheng、François Jérôme
DOI:10.1039/d3ra06461a
日期:——
Here, we study a sequence Diels–Alder/aromatization reaction between biobased furanic derivatives and alkynes, paving the way to renewable phenols. Guided by DFT calculations, we revealed that, in the case of dimethylfuran, the methyl group can migrate during the aromatization step, making this substrate also eligible to access renewable phenols. This reaction has been then successfully transposed