123689-52-1Relevant academic research and scientific papers
Facile Synthesis of Pd Nanoparticles Incorporated into Ultrathin Crystalline g-C3N4with Enhanced Photocatalytic Performance
Cao, Changyan,Huang, Yan,Jiang, Mengying,Li, Jun,Peng, Li,Song, Weiguo,Yang, Shuliang
, p. 7526 - 7532 (2020)
Driving chemical reactions by use of sunlight is of great importance for a sustainable future. Pd-based catalysts are commonly employed in thermal catalysis for various chemical reactions such as hydrogenation and coupling reactions. However, very few reports were related to Pd for photocatalytic coupling reactions. In this work, a facile method was developed to synthesize ultra-small Pd nanoparticles anchored on ultrathin crystalline graphitic carbon nitride (g-C3N4) for photocatalysis. Monodisperse Pd nanoparticles with a diameter of about 3 nm were dispersed on ultrathin crystalline g-C3N4 uniformly. The prepared Pd/g-C3N4 catalyst could take the advantages of the unique properties of ultra-small Pd nanoparticles and ultrathin crystalline g-C3N4 and thus exhibited markedly enhanced photocatalytic performance toward Suzuki-Miyaura coupling reaction under visible light irradiation. The preparing method could also be extended to the synthesis of Ru/g-C3N4, Pt/g-C3N4, and Ag/g-C3N4.
AuCl-catalyzed synthesis of benzyl-protected substituted phenols: A formal [3+3] approach
Huang, Xiaogen,Zhang, Liming
, p. 4627 - 4630 (2007)
(Chemical Equation Presented) A AuCl-catalyzed synthesis of highly substituted, benzyl-protected phenols is developed. This reaction unites enal/enones and benzyl allenyl ether in a [3+3] fashion in two steps, allowing flexibility in phenol synthesis and excellent control of substitution at the benzene ring.
Oxidative Cross-Coupling of Boron and Antimony Nucleophiles via Palladium(I)
Simpson, Quillon,Sinclair, Matthew J. G.,Lupton, David W.,Chaplin, Adrian B.,Hooper, Joel F.
supporting information, p. 5537 - 5540 (2018/09/21)
The use of an isolatable, monomeric Pd(I) complex as a catalyst for the oxidative cross-coupling of aryl-antimony and aryl-boron nucleophiles is reported. This reaction tolerates a wide variety of substrates, with >20:1 selectivity for cross-coupled products. This strategy offers a new approach to achieving the selective cross-coupling of nucleophiles.
Exploring the Reactivity of α-Lithiated Aryl Benzyl Ethers: Inhibition of the [1,2]-Wittig Rearrangement and the Mechanistic Proposal Revisited
Velasco, Rocío,Silva López, Carlos,Nieto Faza, Olalla,Sanz, Roberto
supporting information, p. 15058 - 15068 (2016/10/11)
By carefully controlling the reaction temperature, treatment of aryl benzyl ethers with tBuLi selectively leads to α-lithiation, generating stable organolithiums that can be directly trapped with a variety of selected electrophiles, before they can undergo the expected [1,2]-Wittig rearrangement. This rearrangement has been deeply studied, both experimentally and computationally, with aryl α-lithiated benzyl ethers bearing different substituents at the aryl ring. The obtained results support the competence of a concerted anionic intramolecular addition/elimination sequence and a radical dissociation/recombination sequence for explaining the tendency of migration for aryl groups. The more favored rearrangements are found for substrates with electron-poor aryl groups that favor the anionic pathway.
