DISPIROKETALS IN SYNTHESIS .16. FUNCTIONALIZED DISPIROKETALS AS NEW CHIRAL AUXILIARIES - THE SYNTHESIS OF DIHYDROXYLATED DISPIROKETALS IN OPTICALLY PURE FORM AND THEIR APPLICATION AS BIFUNCTIONAL, C-2-SYMMETRICAL, CHIRAL AUXILIARIES FOR HIGHLY STEREOSELECTIVE MICHAEL ADDITIONS

Citation
Bcb. Bezuidenhoudt et al., DISPIROKETALS IN SYNTHESIS .16. FUNCTIONALIZED DISPIROKETALS AS NEW CHIRAL AUXILIARIES - THE SYNTHESIS OF DIHYDROXYLATED DISPIROKETALS IN OPTICALLY PURE FORM AND THEIR APPLICATION AS BIFUNCTIONAL, C-2-SYMMETRICAL, CHIRAL AUXILIARIES FOR HIGHLY STEREOSELECTIVE MICHAEL ADDITIONS, Recueil des travaux chimiques des Pays-Bas, 114(4-5), 1995, pp. 184-194
Citations number
45
Categorie Soggetti
Chemistry
ISSN journal
01650513
Volume
114
Issue
4-5
Year of publication
1995
Pages
184 - 194
Database
ISI
SICI code
0165-0513(1995)114:4-5<184:DIS.FD>2.0.ZU;2-7
Abstract
A range of rigid, architecturally complex diols derived from dispiroke tals have been synthesised. A bifunctional, C-2-symmetrical, chiral au xiliary derived from these dihydroxylated dispiroketals has been used to induce a high degree of asymmetry in Michael additions of cuprates to a variety of di-alpha,beta-unsaturated ester systems.