cheminform abstract: camphordisulfonamides: good chiral ligands for the addition of dialkylzinc to...

2000 stereochemistry stereochemistry (general, optical resolution) O 0030 34 - 022 Camphordisulfonamides: Good Chiral Ligands for the Addition of Dialkylzinc to Aliphatic Aldehydes. — The enantioselectivity observed in addition reactions of Et 2 Zn to aldehydes in the presence of the title ligands is higher for aliphatic aldehydes than for aromatic ones. An interesting solvent eﬀect is found in these reactions which is not present in asymmetric addition reactions using known, related ligands (optimized conditions shown). — (PRIETO, OSCAR; RAMON, DIEGO J.; YUS, MIGUEL; Tetrahedron: Asymmetry 11 (2000) 7, 1629-1644; Dep. Quim. Org., Fac. Cienc., Univ. Alicante, E-03080 Alicante, Spain; EN) 1

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Page 1: ChemInform Abstract: Camphordisulfonamides: Good Chiral Ligands for the Addition of Dialkylzinc to Aliphatic Aldehydes

2000 stereochemistry

stereochemistry (general, optical resolution)O 0030

34 - 022Camphordisulfonamides: Good Chiral Ligands for the Additionof Dialkylzinc to Aliphatic Aldehydes. — The enantioselectivityobserved in addition reactions of Et2Zn to aldehydes in the presence of the titleligands is higher for aliphatic aldehydes than for aromatic ones. An interestingsolvent effect is found in these reactions which is not present in asymmetricaddition reactions using known, related ligands (optimized conditions shown).— (PRIETO, OSCAR; RAMON, DIEGO J.; YUS, MIGUEL; Tetrahedron:Asymmetry 11 (2000) 7, 1629-1644; Dep. Quim. Org., Fac. Cienc., Univ.Alicante, E-03080 Alicante, Spain; EN)

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