Enantioselective recognition of α-amino acid derivatives with a cis-tetrahydrobenzoxanthene receptorElectronic supplementary information (ESI) available: binding data. See http://www.rsc.org/suppdata/p2/b2/b203054c/
Urea-tetrahydrobenzoxanthene receptors for carboxylic acids
作者:Ana I Oliva、Luis Simón、Francisco M Muñiz、Francisca Sanz、Joaquı́n R Morán
DOI:10.1016/j.tet.2004.03.015
日期:2004.4
Hydrogen-bonding receptors for carboxylic acids have been prepared based on a cis tetrahydrobenzoxanthene skeleton. X-ray diffraction study of one of these compounds revealed that the cleft is suitable for establishing strong linear hydrogen bonds with the oxygen of a water molecule. Complexes that set only three H-bonds with the guests showed no chiral recognition with amino acid derivatives. However, suitable