An article Hydroxyl-functionalized triazolylidene-based PEPPSI complexes: metallacycle formation effect on the Suzuki coupling reaction WOS:000460302800037 published article about PD-NHC PRECATALYST; HETEROCYCLIC CARBENE COMPLEXES; ORTHO-SUBSTITUTED BIARYLS; PALLADIUM COMPLEXES; ARYL CHLORIDES; C-N; ROOM-TEMPERATURE; HIGHLY EFFICIENT; LIGANDS SYNTHESIS; MIYAURA in [Rendon-Nava, David; Alvarez-Hernandez, Alejandro; Suarez-Castillo, Oscar R.; Mendoza-Espinosa, Daniel] Univ Autonoma Estado Hidalgo, Area Acad Quim, Carretera Pachuca Tulancingo Km 4-5, Mineral De La Reforma 42090, Hidalgo, Mexico; [Rheingold, Arnold L.] Univ Calif San Diego, Dept Chem & Biochem, 9500 Gilman Dr, La Jolla, CA 92093 USA in 2019, Cited 100. HPLC of Formula: C7H7Cl. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8
We report the preparation and full characterization of a series of hydroxyl functionalized 1,2,3-triazolylidene- based PEPPSI complexes 2a-c and their catalytic application in the Suzuki cross coupling reaction of aryl chlorides/ amides with boronic acids. Under basic reaction conditions, complexes 2a-c show a notable increase in their catalytic efficiency compared with two ether-wingtip functionalized PEPPSI analogues (3 and 4) and a commercially available NHC-Pd complex (5). The catalytic results suggest that deprotonation of the hydroxyl group in complexes 2a-c plays an important role in the overall process. Deprotonation of the alcohol moiety of complexes 2a-b with sodium tert-butoxide allows for the isolation of metallacycles 6a-b, which are proposed as the active species of cross coupling reactions.
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Reference:
Patent; Nanjing Zhongteng Chemical Co., Ltd.; Zhong Hua; Lu Minshan; Chen Xiuzhen; Liu Qiaobao; Yin Hengbo; Wang Aili; (8 pag.)CN104876790; (2017); B;,
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