INHERENT CHIRAL 1,2-BRIDGED CALIX[4]ARENE DIPHOSPHATE - SYNTHESIS, PROPERTIES AND SEPARATION OF ISOMERS

Authors
GLOEDE J KEITEL I COSTISELLA B KUNATH A SCHNEIDER M
Citation
J. Gloede et al., INHERENT CHIRAL 1,2-BRIDGED CALIX[4]ARENE DIPHOSPHATE - SYNTHESIS, PROPERTIES AND SEPARATION OF ISOMERS, Phosphorus, sulfur and silicon and the related elements, 117, 1996, pp. 67-88
Citations number
37
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Phosphorus, sulfur and silicon and the related elements → ACNP
ISSN journal
10426507
Volume
117
Year of publication
1996
Pages
67 - 88
Database
ISI
SICI code
1042-6507(1996)117:<67:IC1CD->2.0.ZU;2-4
Abstract
Inherent chiral 1,2-bridged calix[4]arene diphosphates (3-8) were synt hesized from the achiral phosphorus containing 1,2,3-bridged calix[4]a rene derivatives 1 and 2 or from the corresponding chiral trichloride 6. The structures and the properties of stereomers (3-6) were examined by means of NMR investigations with chiral reagents, HPLC method usin g a chiral-packed column and X-ray crystallography. The separation of stereomers (calix[4]arene diphosphates 4 and 5), which have two stereo genic units, was performed.