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Convenient method for the rapid generation of highly active and enantioselective yttrium catalysts for asymmetric hydroamination.

Chemical communications (Cambridge, England) (2008-07-26)
Jérôme Hannedouche, Isabelle Aillaud, Jacqueline Collin, Emmanuelle Schulz, Alexander Trifonov
RÉSUMÉ

A facile method for the preparation of highly active and enantioselective yttrium precatalysts for asymmetric hydroamination of gem-disubstituted aminoalkenes, from the combination of YCl(3) or YCl(3)(THF)(3.5) with ligand (R)- and n-BuLi is described.

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Sigma-Aldrich
Yttrium(III) chloride, anhydrous, powder, 99.99% trace metals basis
Sigma-Aldrich
Yttrium(III) chloride hexahydrate, 99.99% trace metals basis
Sigma-Aldrich
Yttrium(III) chloride hexahydrate, 99.9% trace metals basis
Sigma-Aldrich
Yttrium(III) chloride, AnhydroBeads, −10 mesh, 99.99% trace metals basis
Sigma-Aldrich
Yttrium(III) chloride hexahydrate, 99.999% trace metals basis