CATALYTIC COMPOSITION, METHOD FOR PRODUCTION OF COPOLYMERS, HEXA-KIS-PHOSPHINES, HEXAHALIDE COMPOUNDS; 1,3,5-TRIS[(1,3-DIBROMO-2-PROPOXY)METHYL]BENZENE AND 1,3,5-TRIS[(1,3-DIBROMO-2-PROPOXY)METHYL]-2,4,6-TRIMETHYLBENZENE AS INTERMEDIATE PRODUCTS FOR PRODUCTION OF HEXA-KIS-PHOSPHINES Russian patent published in 1997 - IPC

FIELD: catalytic chemistry. SUBSTANCE: proposed catalytic compositions contain palladium and hexa-kis-phosphine having common formula [(R⁶)₂P]₆R⁵ where R⁶ is phenyl group which may comprise at least one alkoxy substituent in orto-position in respect with phosphorous atom which with phenyl group is bound. R⁵ is benzene ring having group as substituents in 1-, 3-, and 5-positions, said group is bound with benzene ring by carbon atom having index *. Said benzene ring may comprise as substituents methyl group in 2-, 4- and 6-positions. EFFECT: improved quality of desired product, improved efficiency of the method. 7 cl, 2 tbl