55791-74-7Relevant articles and documents
Synthesis of polybenzamide-b-polystyrene block copolymer via combination of chain-growth condensation polymerization and atom transfer radical Polymerization
Huang, Chih-Feng,Akihiro, Yokoyama,Tsutomu, Yokozawa
, p. 2948 - 2954 (2010)
Researchers at the Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi have developed chain growth condensation polymerization (CGCP) to provide rod-like polymers with controlled molecular weight, low polydispersity, and functiona
Sodium Butylated Hydroxytoluene: A Functional Group Tolerant, Eco-Friendly Base for Solvent-Free, Pd-Catalysed Amination
Semeniuchenko, Volodymyr,Braje, Wilfried M.,Organ, Michael G.
supporting information, p. 12535 - 12539 (2021/08/03)
NaBHT (sodium 2,6-di-tert-butyl-4-methylphenolate), a strong, but hindered and lipophilic base, has been effectively paired with similarly lipophilic, high-reactivity Pd-NHC (N-heterocyclic carbene) catalysts to produce an ideal combination for performing
Palladium-catalyzed amination of aryl and heteroaryl tosylates at room temperature
Ogata, Tokutaro,Hartwig, John F.
supporting information; experimental part, p. 13848 - 13849 (2009/02/07)
Mild palladium-catalyzed aminations of aryl tosylates and the first aminations of heteroaryl tosylates are described. In the presence of the combination of L2Pd(0) (L = P(o-tol)3) and the hindered Josiphos ligand CyPF-t-Bu, a variety of primary alkylamines and arylamines react with both aryl and heteroaryl tosylates at room temperature to form the corresponding secondary arylamines in high yields with complete selectivity for the monoarylamine. These reactions at room temperature occur in many cases with catalyst loadings of 0.1 mol % and 0.01 mol % in one case, constituting the most efficient aminations of aryl tosylates by nearly 2 orders of magnitude. This catalyst is made practical by the development of a convenient method to synthesize the L2Pd(0) precursor. This complex is stable to air as a solid. In contrast to conventional relative rates for reactions of aryl sulfonates, the reactions of aryl tosylates are faster than parallel reactions of aryl triflates, and the reactions of aryl tosylates are faster than parallel or competitive reactions of aryl chlorides. Copyright