ACHIRAL BIDENTATE P,N-LIGANDS AND METHOD FOR THEIR PREPARING

摘要

FIELD: organic chemistry, chemical technology.;SUBSTANCE: invention relates to new P,N-bidentate ligands of the formula (I):; ;wherein A represents sulfur atom (S) or NR wherein R represents (C₁-C₄)-alkyl; R₁ and R₂ represent hydrogen atom, (C₁-C₄)-alkyl or R₁ and R₂ can be cyclizated to form benzene ring; R₃ and R₄ represent (C₁-C₄)-alkyl or phenyl; R₅ and R₆ represent (C₁-C₄)-alkyl. Indicated compounds can be used as components of catalysts in reactions of amination, cross-coupling, hydroformylation, allyl alkylation and others.;EFFECT: improved preparing method.;2 cl, 1 tbl, 3 ex