A catalytic one-pot cascade dehydrogenative cyclization of 1-(2-aminophenyl)ethanone using primary alcohols is presented. The reaction is catalyzed by an earth-abundant manganese pincer complex of NNSe ligand, without any solvent, additives, base, or hydrogen acceptor, liberating dihydrogen and water as the only byproducts. Compared to an earlier reported four-step dehydrogenative coupling protocol, only a single step is required to synthesize 2-aryl-2,3-dihydroquinolin-4(1)-ones.
View Article and Find Full Text PDFHerein, we have reported the synthesis of a macrocyclic organosulfur ligand (L1) having a seventeen-membered macrocyclic ring. Subsequently, the corresponding trans-palladium complex (C1) of bulky macrocyclic organosulfur ligand (L1) was synthesized by reacting it with PdCl (CH CN) salt. The newly synthesized ligand and complex were characterized using various analytical and spectroscopic techniques.
View Article and Find Full Text PDFThis report describes the synthesis of a seventeen-membered macrocyclic ring containing ligand (L1) by the reaction of 1,8-bis(2-(chloromethyl)phenoxy)octane with selenium powder. The -palladium dichloride complex (C1) of the macrocyclic selenium ligand was synthesized from its reaction with the Pd(CHCN)Cl precursor. The formation of the ligand and complex was authenticated with the help of various analytical techniques like H and C{H} NMR, HRMS, FTIR, UV-visible spectroscopy, and elemental analysis.
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