《Well-defined PEPPSI-themed palladium-NHC complexes: synthesis, and catalytic application in the direct arylation of heteroarenes》 was written by Kaloglu, Murat; Gurbuz, Nevin; Yildirim, Ilkay; Ozdemir, Namik; Ozdemir, Ismail. Related Products of 88-15-3 And the article was included in Applied Organometallic Chemistry in 2020. The article conveys some information:
In this study, a series of benzimidazolium salts were synthesized as unsym. N-heterocyclic carbene (NHC) precursors. Benzimidazolium salts were used for synthesis of the PEPPSI (pyridine enhanced precatalyst preparation stabilization and initiation)-themed, six new Pd-complexes I [R = 4-MeOC6H4CH2, 4-t-BuC6H4, 2,4,6-(Me)3C6H2, etc.; X = Cl, Br]. The structures of all compounds were characterized by various spectroscopic techniques such as 1H NMR, 13C NMR and FT-IR. The more detailed structural characterization of four of the complexes was determined by single crystal X ray diffraction study. The catalytic activities of all Pd-complexes were evaluated in the direct arylation of the 2-acetylfuran and 2-acetylthiophene with aryl bromides in the presence of 1 mol% catalyst loading to afford biaryls II [R1 = Ph, 4-MeC6H4, 4-CHOC6H4, etc.; Y = O,S]. The experimental part of the paper was very detailed, including the reaction process of 1-Thiophen-2-yl-ethanone(cas: 88-15-3Related Products of 88-15-3)
1-Thiophen-2-yl-ethanone(cas: 88-15-3) belongs to thiophenes. Reflecting their high stabilities, thiophenes arise from many reactions involving sulfur sources and hydrocarbons, especially unsaturated ones. Thiophenes are classically prepared by the reaction of 1,4-diketones, diesters, or dicarboxylates with sulfidizing reagents such as P4S10 such as in the Paal-Knorr thiophene synthesis. Related Products of 88-15-3
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem