HETEROARYL-ARYLDIPHOSPHINES AND METHOD FOR THEIR PREPARING Russian patent published in 2004 - IPC

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to new heteroaryl-aryldiphosphines of formulas (I) and (II) wherein for compounds of the formula (I): A means sulfur atom if B means carbon atom; A means nitrogen atom if B means nitrogen atom; R₁ means hydrogen atom or C₁-C₄-alkyl; R₂-R₅ means phenyl; R₆ and R₇ means hydrogen atom; n = 0 or 1; R₈-R₁₁ mean hydrogen atom; for compounds of the formula (II): A means nitrogen atom if B means carbon atom R₁ means C₁-C₄-alkyl; A means carbon atom if B means nitrogen atom; R₁ means hydrogen atom; A means nitrogen atom if B means nitrogen atom; R₁ means oxygen atom; A means oxygen atom if B means carbon atom; R₁ means oxygen atom; R₂-R₅ mean phenyl; R₈-R₁₁ means hydrogen atom or C₁-C₄- alkyl. Compounds of formulas (I) and (II) can be used for preparing transient metals complexes that catalyze amination, hydrogenation or hydroformylation reactions. EFFECT: improved preparing method. 2 cl, 1 tbl, 7 ex