Tetrahedron Letters p. 6837 - 6840 (1993)
Update date:2022-08-05
Topics:
Hamann, Blake C.
Branda, Neil R.
Rebek, Julius
A neutral molecular receptor of carboxylates has been deevloped using the convergent ureas as the binding site.The data indicate that chelation of the carboxylates occurs by the urea hydrogens.Asymmetric centers in the host are shown to influence the nmr
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