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

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

要旨

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.

材料

製品番号

ブランド

製品内容

451363

Sigma-Aldrich

塩化イットリウム(III), anhydrous, powder, 99.99% trace metals basis

464317

Sigma-Aldrich

塩化イットリウム(III) 六水和物, 99.99% trace metals basis

211648

Sigma-Aldrich

塩化イットリウム(III) 六水和物, 99.9% trace metals basis

450103

Sigma-Aldrich

塩化イットリウム(III), AnhydroBeads^™, −10 mesh, 99.99% trace metals basis

204919

Sigma-Aldrich

塩化イットリウム(III) 六水和物, 99.999% trace metals basis