Chiral recognition with a benzofuran receptor that mimics an oxyanion holeElectronic supplementary information (ESI) available: Experimental procedures, 1H and 13C NMR, IR and HRMS spectra of compounds 1-8 and guests of Tables 2-4, modeling studies of Fig. 1 and 7 and X-ray diffraction data of compounds 6 and 7, determination of the absolute configuration of (+)-7 and (+)-8 by simulation of ECD spectra. CCDC 1010318-1010319. For ESI and crystallographic data in CIF or other electronic format see

A new chiral benzofuran receptor has been synthesized and its properties in the association of amino acid derivatives have been studied. X-ray structures were obtained and these corroborate the presence of an oxyanion-hole motif in these structures. Chiral resolution of a novel tripodal oxyanion-hole receptor with application in amino acid derivatives enantioselective extraction.