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Direct separation of cone-shaped tri-O-alkylated chiral calix[4]arenes by enantioselective HPLC (1993)

Caccamese, Salvatore ; Pappalardo, Sebastiano

New York, NY [u.a.] : Wiley-Blackwell

Chirality 5 (1993), S. 159-163

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ISSN: 0899-0042

Keywords: chiral phases ; inherently chiral calixarenes ; CD spectra ; Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The direct HPLC separation of eight inherently chiral atropisomeric calix[4]arenes has been achieved using Chiralcel OD phase. A rationale is given for the variation of the enantioselectivity as a function of the O-alkyl or O-aryl groups. In closely related structures hydrogen bond formation between the free hydroxyl of the analyte and the chiral phase plays an important role in the chiral recognition process. © 1993 Wiley-Liss, Inc.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/chir.530050310

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