Recoverable Chiral Sulfoxide: Asymmetric Diels–Alder Reaction Using Optically Active 1-(2-p-Tolylsulfinyl)pyrrolylα,β-Unsaturated Ketones as a Dienophile
Recoverable Chiral Sulfoxide: Asymmetric Diels–Alder Reaction Using Optically Active 1-(2-p-Tolylsulfinyl)pyrrolylα,β-Unsaturated Ketones as a Dienophile
Arai, Yoshitsugu; Masuda, Tsutomu; Masaki, Yukio, Journal of the Chemical Society. Perkin transactions I, 1999, # 15, p. 2165 - 2170
作者:Arai, Yoshitsugu、Masuda, Tsutomu、Masaki, Yukio
DOI:——
日期:——
N-Phosphano nitrogen-containing five-membered aromatic chiral α-sulfoxides as new chiral ligands in asymmetric palladium-catalyzed allylic alkylation: stereoelectronic effects of the substituents on the aromatic rings
New chiral ligands, N-diphenylphosphano nitrogen-containing five-membered aromatic compounds bearing chiral sulfinyl groups as the sole chiral source has been developed. The structure of a palladium intermediate derived from the new chiral sulfoxide ligand was determined as a palladium complex with a five-membered chelate ring formed by coordination of the phosphano group and the sulfinyl sulfur atom involved. The stereoelectronic effects of substituents on the aromatic rings are discussed. (C) 2004 Elsevier Ltd. All rights reserved.