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

초록

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.

MATERIALS

제품 번호

브랜드

제품 설명

204919

Sigma-Aldrich

Yttrium(III) chloride hexahydrate, 99.999% trace metals basis

211648

Sigma-Aldrich

Yttrium(III) chloride hexahydrate, 99.9% trace metals basis

464317

Sigma-Aldrich

Yttrium(III) chloride hexahydrate, 99.99% trace metals basis

451363

Sigma-Aldrich

Yttrium(III) chloride, anhydrous, powder, 99.99% trace metals basis

450103

Sigma-Aldrich

Yttrium(III) chloride, AnhydroBeads^™, −10 mesh, 99.99% trace metals basis