TPGS-750-M: A Second-Generation Amphiphile for Metal-Catalyzed Cross-Couplings in Water at Room Temperature
作者:Bruce H. Lipshutz、Subir Ghorai、Alexander R. Abela、Ralph Moser、Takashi Nishikata、Christophe Duplais、Arkady Krasovskiy、Ricky D. Gaston、Robert C. Gadwood
DOI:10.1021/jo101974u
日期:2011.6.3
prepared as an effective nanomicelle-forming species for general use in metal-catalyzed cross-coupling reactions in water. Several “name” reactions, including Heck, Suzuki−Miyaura, Sonogashira, and Negishi-like couplings, have been studied using this technology, as have aminations, C−H activations, and olefin metathesis reactions. Physical data in the form of DLS and cryo-TEM measurements suggest that
In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions.
Direct olefination of benzaldehydes into 1,3-diarylpropenes <i>via</i> a copper-catalyzed heterodomino Knoevenagel-decarboxylation-Csp<sup>3</sup>-H activation sequence
作者:Yaping Zhao、Lu Sun、Tieqiang Zeng、Jiayi Wang、Yanqing Peng、Gonghua Song
DOI:10.1039/c4ob00155a
日期:——
Copper-catalyzed direct olefination of benzaldehydes into 1,3-diarylpropenes by a novel domino Knoevenagel-decarboxylation-Csp3-H activation sequence is reported. This method provides a concise and effective route toward the synthesis of unsymmetrical 1,3-diarylpropene derivatives.
Copper-catalyzed decarboxylative C(sp2)–C(sp3) coupling reactions via radical mechanism
作者:Hailong Yang、Peng Sun、Yan Zhu、Hong Yan、Linhua Lu、Xiaoming Qu、Tingyi Li、Jincheng Mao
DOI:10.1039/c2cc33203e
日期:——
We have successfully developed an example of copper-catalyzed decarboxylative C(sp(2))-C(sp(3)) coupling reactions via C-H functionalization for the first time. It is noteworthy that our catalytic system is very stable, low-cost, palladium-free, ligand-free, and easily accessible.
In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions.