نتایج جستجو برای: suzuki reaction

تعداد نتایج: 415790  

Journal: :Catalysts 2023

The direct formation of (hetero)biaryls from readily available (hetero)aryl halides under mild reaction conditions can be efficiently achieved through the Masuda borylation–Suzuki coupling (MBSC) sequence. MBSC sequence catenates Pd-catalyzed borylation and Suzuki into a one-pot process, giving access to diverse symmetrically unsymmetrically substituted scaffolds. (Hetero)biaryls are ubiquitous...

Journal: :Organic & biomolecular chemistry 2014
Chen Xu Hong-Mei Li Xiao-Er Yuan Zhi-Qiang Xiao Zhi-Qiang Wang Wei-Jun Fu Bao-Ming Ji Xin-Qi Hao Mao-Ping Song

Two new NHC adducts of cyclopalladated ferrocenylpyrazine complexes 1-2 have been prepared and characterized. An efficient NHC-modulated Pd/Cu cocatalyzed three-component coupling reaction for the synthesis of 2,6-diarylquinolines from aminobenzyl alcohols, aryl ketones, and arylboronic acids in air is described. The reaction involves oxidation, cyclization and Suzuki reactions. The luminescenc...

2014
Sivaprasad Attaluri Charles R. Iden Radha R. Bonala Francis Johnson

Plants from the Aristolochia genus have been recommended for the treatment of a variety of human ailments since the time of Hippocrates. However, many species produce the highly toxic aristolochic acids (AAs), which are both nephrotoxic and carcinogenic. For the purposes of extensive biological studies, a versatile approach to the synthesis of the AAs and their major metabolites was devised bas...

Journal: :Chemical communications 2015
Huifang Guo Xiao Chen Chunliang Zhao Wei He

Herein we report Pd catalyzed Suzuki type cross coupling between aryl halides and silylboranes for the syntheses of aryl silanes. This reaction shows a general substrate scope, excellent compatibility with electrophilic functionalities and good yields.

Journal: :Chemical communications 2012
Lena Arnold Martin Baumgarten Klaus Müllen

Carbazole-containing porphyrinoid was synthesised for the first time via Suzuki-Miyaura cross-coupling reaction. Oxidation with MnO(2) yielded its porphyrin-state featuring macrocyclic aromaticity in exchange for the loss of the resonance energies of the benzene rings.

Journal: :Chemical communications 2009
Volodymyr Sashuk Dirk Schoeps Herbert Plenio

Fluorophore tagged N-heterocyclic carbenes and the derived (NHC)Pd(allyl)Cl complexes were synthesized and the fluorescence signal was used to follow the course of a Suzuki coupling reaction.

Journal: :Molecules 2009
Huanan Hu Changhua Ge Anjiang Zhang Lisheng Ding

A highly efficient palladium acetate-catalyzed ligand-free Suzuki reaction of 2,3,5-trichloropyridine with arylboronic acids in aqueous phase was developed. High yields of 3,5-dichloro-2-arylpyridines, a simple Pd source, absence of ligands, and environmentally benign as well as mild reaction conditions are important features of this method.

2011
Qingwei Du Yiqun Li

A diphenylphosphinite cellulose palladium complex (Cell-OPPh(2)-Pd(0)) was found to be a highly efficient heterogeneous catalyst for the Suzuki-Miyaura reaction. The products were obtained in good to excellent yield under mild reaction conditions. Moreover, the catalyst could be easily recovered by simple filtration and reused for at least 6 cycles without losing its activity.

The cross-coupling reaction between phenylboronic acid and various types of aryl halides (Suzuki reaction) was carried out using a catalytic amount of a new palladium catalyst (1-benzyl-3-(1-benzyl-1-methylpyrrolidin-1-ium-2-yl) pyridin-1-ium palladium chloride [DBNT][PdCl4]) in poly (ethylene glycol) (PEG-200) in the presence of KOH as the base. This new catalyst was synthesized and...

Journal: :Chemical communications 2007
Fanglei Yu David J Miller Rudolf K Allemann

12,13-Difluorofarnesyl diphosphate, prepared using Suzuki-Miyaura chemistry, is a potent inhibitor of aristolochene synthase (AS), indicating that the initial cyclisation during AS catalysis generates germacryl cation in a concerted reaction.

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