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Enantioselective Complexation with a Conformationally Homogeneous C2 Podand Ionophore

1989; Elsevier BV; Volume: 30; Issue: 50 Linguagem: Inglês

10.1016/s0040-4039(01)93394-5

1873-3581

Takamasa Iimori, Shawn D. Erickson, Arnold L. Rheingold, W. Clark Still,

Supramolecular Chemistry and Complexes

The podand tetraether 1b has been prepared from (+)-diethyl tartrate. This ionophore is expected to have only one significantly populated conformation. It binds a variety of chiral organic ammonium cations with enantioselectivities corresponding to 34–42% ee.