palladiumヽatalyzed alkynylationSummary In this chapter the authors discuss the Pd-catalyzed reactions of aryl, alkenyl, benzyl, alkyl, and acyl electrophiles with metal nucleophiles leading to carbon-metal bond formation. The Sonogashira and related Heck-type alkyne hydrogen substitution reactions are ...
1, 5 Janvier 1990, EASTON US pages 63 - 69 W. TAO ET AL ' Palladium-Catalyzed Alkenylation and Alkynylation of Polyhaloarenes. 'Tao, W.; Nesbitt, S.; Heck, R. F. Palladium-Catalyzed Alkenylation and Alkynylation of Polyhaloarenes. J. Org. Chem. 1990, 55, 63-69....
Palladium-Catalyzed Cascade Cyclization/Alkynylation and Alkenylation of Alkynone O-Methyloximes with Terminal Alkynes 2018, Advanced Synthesis and Catalysis Access to α-Amino Acid Esters through Palladium-Catalyzed Oxidative Amination of Vinyl Ethers with Hydrogen Peroxide as the Oxidant and Oxygen Source...
摘要: A novel palladium-catalyzed methylation protocol for the synthesis of methyl-functionalized internal alkynes has been established. This methylation method is achieved through a C(sp)-C(sp(3)) bond formation process and represents a new synthetic application of sulfonium ylides....
R. Palladium-catalyzed alkynylation and concomitant ortho alkylation of aryl iodides. ACS Catal. 6, 1635–1639 (2016). Article CAS Google Scholar Luo, B., Gao, J. M. & Lautens, M. Palladium-catalyzed norbornene-mediated tandem amination/cyanation reaction: a method for the synthesis of ...
Development of axially chiral styrene-type carboxylic acid ligands via palladium-catalyzed asymmetric C-H alkynylation. Org. Lett. 23, 8132–8137 (2021). Article CAS PubMed Google Scholar Wang, Y. B. et al. Asymmetric construction of axially chiral 2-arylpyrroles by chirality transfer of ...
Mild and effective direct palladium catalyzed C-H alkynylation of electron-rich heterocycles. Synthesis of spiro-indane-oxindoles with a tandem Heck / C-H functionalization. Reference: Angew. Chem. Int. Ed. 2008, 47, 4711. (DOI: 10.1002/anie.200800549) ...
Catalyst for direct Pd-catalyzed alkynylation of N-fused heterocycles.Catalyst for a tandem Heck reaction/C-H functionalization.Catalyst for direct arylation of tautomerizable heterocycles. 8.5 General Description Bis(triphenylphosphine)palladium(II) dichloride is an organometallic complex. It is an ...
Update 1 of: Synthesis and functionalization of indoles through palladium-catalyzed reactions. A team of scientists has made an effort to provide a comprehensive and updated overview of the latest developments in the palladium-catalyzed approaches to... S Cacchi,G Fabrizi - 《Chemical Reviews》 被...
The catalytic cycle probably consists of a Pd-catalyzed CH activation of the terminal alkyne, a regioselective hydropalladation followed by distal bond cleavage ofdoi:10.1002/chem.200901821Lara VillarinoDepartamento de Química Orgánica, Universidade de Santiago de Compostela, Avda. de las Ciencias, s...