P. Ten Holte et al., Polymer-supported N-tritylaziridinyl(diphenyl)methanol as an effective catalyst in the enantioselective addition of diethylzinc to aldehydes, ORG LETT, 1(7), 1999, pp. 1095-1097
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Novel polymer-supported N-tritylaziridino alcohol 2 was utilized as chiral
ligand in the asymmetric addition of diethylzinc to aldehydes. High enantio
selectivities were obtained for both aromatic and aliphatic aldehydes, The
catalyst was successfully recycled and employed in subsequent additions wit
h retention of high enantioselectivity.