123770-68-3Relevant academic research and scientific papers
Copper- and palladium-containing perovskites: Catalysts for the Ullmann and Sonogashira reactions
Lohmann, Sophie,Andrews, Stephen P.,Burke, Brenda J.,Smith, Martin D.,Attfield, J. Paul,Tanaka, Hirohisa,Kaneko, Kimiyoshi,Ley, Steven V.
, p. 1291 - 1295 (2005)
The utility of perovskite-based materials in organic synthesis is explored through examination of a series of copper- and palladium-containing perovskites in Ullmann and Sonogashira type reactions. La0.9Ce 0.1Co0.6Cu0.4O3 is identified as an effective catalyst for the synthesis of a range of biaryl ether and thioether functionalities, whilst a Cu- and Pd-containing perovskite is effective in the Sonogashira reaction. These results suggest that perovskites may be useful leads in the search for new catalysts and reagents for organic synthesis.
Thermoregulated aqueous biphasic catalysis of sonogashira reactions
Zhao, Xiaohua,Liu, Xiang,Lu, Ming
, p. 1614 - 1617 (2015)
A water-based thermoregulated system for Pd-catalyzed Sonogashira reactions is presented, which allows for not only a highly efficient homogeneous catalytic reaction, but also an easy separation/recovery of the catalyst. The novel catalytic system exhibits high efficiency and excellent reusability. In addition, the Sonogashira reactions are performed with Pd(OAc)2 without a copper co-catalyst.
Palladium nanoparticles embedded in improved mesoporous silica: A pH-triggered phase transfer catalyst for Sonogashira reaction
Zhao, Xiaohua,Liu, Xiang,Zhu, Yaoqin,Lu, Ming
, p. 674 - 677 (2015/09/28)
An efficient and reusable pH-responsive mesoporous silica nanocomposite shuttle-supported palladium catalyst was synthesized, which efficiently promotes the Sonogashira reaction in water-based biphasic systems. This catalyst of shell-embedded palladium nanoparticles is highly dispersed in organic phase in a pH range from 9 to 10 just like a homogeneous catalyst, and can be separated and reused like a heterogeneous one by adjusting the pH value of the aqueous medium. In addition, Sonogashira reactions can be performed without a copper co-catalyst.
Pd nanoparticles immobilized on poly(NIPAM-co-4-VP) hydrogel: Highly active and reusable catalyst for carbon-carbon coupling reactions in water
Lee, Yongwoo,Hong, Myeng Chan,Ahn, Hyunseok,Yu, Jeongmok,Rhee, Hakjune
, p. 80 - 93 (2014/09/16)
Poly(N-isopropylacrylamide-co-4-vinylpyridine) [poly(NIPAM-co-4-VP)] co-polymer exhibited inverse temperature solubility with a lower critical solution temperature (LCST) in water. Pd nanoparticles were immobilized on these poly(NIPAM-co-4-VP) hydrogels. The heterogeneous Pd catalyst showed high catalytic activities for carbon-carbon coupling reactions, such as Suzuki-Miyaura, Heck-Mizoroki, and Sonogashira coupling reactions in water. The Pd catalyst immobilized on poly(NIPAM-co-4-VP) hydrogel (NIPAM:4-VP = 1:1 M ratio) showed an excellent recyclability and excellent yield for carbon-carbon coupling reactions.
The electronic structure and second-order nonlinear optical properties of donor-acceptor acetylenes: A detailed investigation of structure-property relationships
Stiegman,Graham, Eva,Perry, Kelly J.,Khundkar, Lutfur R.,Cheng,Perry, Joseph W.
, p. 7658 - 7666 (2007/10/02)
A series of donor-acceptor acetylene compounds was synthesized in which systematic in both the conjugation length and the donor-acceptor strength were made. The effect of these structural changes on the spectrcscopic electronic proprties of the molecules
