Synthetic Route of C4H6O4Pd. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Palladium(II) acetate, is researched, Molecular C4H6O4Pd, CAS is 3375-31-3, about Ligand-Enabled C-H Olefination and Lactonization of Benzoic Acids and Phenylacetic Acids via Palladium Catalyst. Author is Wang, Yangyang; Xu, Xiaobo; Wu, Gaorong; Pang, Binghan; Liao, Shaowen; Ji, Yafei.
A novel ligand propan-2-one O-(p-tolylcarbamoyl) oxime had been developed to promote C(sp2)-H olefination of benzoic acids and phenylacetic acids via a palladium catalyst. With the subsequent lactonization of the olefinated products through 1,4-addition, a highly monoselective cyclic lactone products of benzopyrones I [R1 = 5-Me, 7-Cl, 5-F, etc.; R2 = CO2Me, CO2Et, CO2Bu, CO2Bn, C(O)NHCH(CH3)2, P(O)(OEt)2] and benzofuranones II [R3 = 5-Me, 6-MeO, 6-CF3, etc.; R2 = CO2Me, CO2Et, CO2Bu, etc.] were obtained in moderate to excellent yields. The DFT calculation demonstrated that the novel ligand propan-2-one O-(p-tolylcarbamoyl) oxime could lubricate the C-H activation reaction to give cyclic lactone products elegantly.
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