Preparation of bicyclic hexitol anhydrides by using acidic cation-exchange resin in a binary solvent. p13C-N.m.r. spectroscopy confirms configurational inversion in chloride displacement of methanesulfonate in isomannide and isosorbide derivatives
Approach to a better understanding and modeling of (S)-dihydrofuran-2-yl, (S)-tetrahydrofuran-2-yl-, and furan-2-yl-β-dialkylaminoethanol ligands for enantioselective alkylation
作者:Claudio Paolucci、Goffredo Rosini
DOI:10.1016/j.tetasy.2007.11.034
日期:2007.12
derivatives used as ligands for catalysts in the asymmetric alkylation of aldehydes. Thirty-four enantiomerically pure (S)-dihydrofuran-2-yl, (S)-tetrahydrofuran-2-yl-, and furan-2-yl-β-dialkylamino alcohols have been prepared from 1,4:3,6-dianhydromannitol, 1,4:3,6-dianhydrosorbitol, and aminoacids, and then have been evaluated as ligands for the enantioselective addition of diethylzinc to benzaldehyde. Attention
The Stereochemistry of 1,4: 3,6-Dianhydrohexitol Derivatives<sup>1</sup>
作者:Arthur C. Cope、T. Y. Shen
DOI:10.1021/ja01594a055
日期:1956.7
Overend et al., Journal of the Chemical Society, 1948, p. 2201
作者:Overend et al.
DOI:——
日期:——
264. Anhydrides of polyhydric alcohols. Part XV. The reactions of sodium iodide and lithium chloride with dimethanesulphonyl and ditoluene-p-sulphonyl derivatives of the 1 : 4-3 : 6-dianhydrides of D-mannitol, D-sorbitol, and L-iditol