Article
Chemistry, Organic
Cunbo Wei, Lizhu Zhang, Zhonghua Xia
Summary: A gold-catalyzed Heck reaction was developed for the synthesis of stilbenes and bistyryl complexes by cross-coupling aryl and styryl iodides with styrenes. The reaction exhibited good functional-group tolerance and mild conditions, assisted by a hemilabile P,N ligand. The mechanism may involve migratory insertion and beta-hydride elimination steps.
Article
Chemistry, Inorganic & Nuclear
Giulio Bresciani, Stefano Zacchini, Guido Pampaloni, Marco Bortoluzzi, Fabio Marchetti
Summary: A series of novel metal-organic compounds were synthesized by reacting with internal alkynes using a tricarbonyl precursor and catalyst, leading to the formation of unique structures.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Zhi-Chao Qi, Qin-Xin Lou, Yuan Niu, Shang-Dong Yang
Summary: A palladium-catalyzed, temporary P(O) directing group assisted C-H bond arylation of carbazoles was achieved. The release of the directing group occurs spontaneously in the reaction and mechanistic studies indicate that acid is essential for N-P bond cleavage.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Marc Schnierle, Marie Leimkuhler, Mark R. Ringenberg
Summary: The bidentate ligand TzPy showed noninnocent behavior and could be modified by dienophiles. The kinetic analysis of the reaction between [1](+) and ViFc yielded Delta G double dagger(298 K) = 67 kJ mol(-1), while that of [1](+) and EthFc was Delta G double dagger(298 K) = 83 kJ mol(-1). The electrochemical reduction mechanism of [1Fc](+) was studied using cyclic voltammetry and UV-vis SEC experiments, supported by DFT calculations.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Organic
Yan-Qin He, Zhong-Qiu Li, Yu-Wu Zhong
Summary: A synthetic methodology for the preparation of dibenzo[f,h]quinolines and their derivatives via stepwise ruthenium-catalyzed C-H arylation and potassium-mediated reductive cyclodehydrogenation from 2-phenylpyridine and aryl bromides is described. One dibenzo[f,h]quinoline derivative is used as a bidentate ligand to synthesize a cyclometalated ruthenium complex. The molecular structures of two dibenzo[f,h]quinoline compounds and the ruthenium complex are determined by single-crystal X-ray analysis.
SYNTHESIS-STUTTGART
(2023)
Article
Chemistry, Multidisciplinary
Wei Sun, Luke Wilding-Steele, Richard C. D. Brown, David C. C. Harrowven
Summary: Benzyloxy iodobenzene ethers can undergo cyclisation to form benzo[c]chromenes under UVC irradiation without the need for reagents or catalysts. The reactions proceed through the generation of triplet aryl cations, 5-exo and 3-exo-cyclisations, and subsequent rearomatisation. This methodology is versatile, convenient, and applicable to various related ring systems.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ivelise Dimbarre Lao Guimaraes, Flavia Marszaukowski, Renan Ribeiro, Sergio Ricardo de Lazaro, Katia Mara de Oliveira, Alzir Azevedo Batista, Patricia Castellen, Ellen Wrobel, Jarem Raul Garcia, Rene T. Boere, Karen Wohnrath
Summary: Neutral Ru(II)-arene complexes with different ligands were synthesized, characterized, and evaluated for cytotoxicity against lung and breast cancer cell lines. The complexes showed varying solubility and cytotoxicity, with one complex displaying high cytotoxicity towards cancer cells but no activity against healthy cells, indicating some degree of selectivity.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)