METHOD OF TELOMERIZATION OF DIENE WITH CONJUGATED DOUBLE BONDS, CATALYST AND BIDENTATE LIGAND USED IN INDICATED METHOD Russian patent published in 2008 - IPC C07C2/40 B01J31/24 C07C41/06 C07F9/50 C07B37/02 

FIELD: organic synthesis and catalysts.

SUBSTANCE: invention relates to improved method of telomerization of diene with conjugated double bonds, wherein said diene interacts with a compound having active hydrogen atom and selected from group, consisting of alkanols, hydroxyaromatic compounds, carboxylic acids, and water, in presence of telomerization catalyst based on VIII group metal source and bidentate ligand. The latter is depicted by general formula (I): R¹R²M1-R-M²R³R⁴, wherein M¹ and M² independently represent P; R¹, R², R³, and R⁴ independently represent monovalent aliphatic group or R¹, R², and M¹ jointly and/or R³, R⁴, and M² jointly independently represent cycloaliphatic group with 5-12 carbon atoms in cycle, wherefrom one atom is M¹ or M²; and R represents (i) bivalent organic bridge group, which is unsubstituted alkylene group or alkylene group substituted by lower alkyl groups optionally incorporating oxygen as heteroatom, or (ii) group containing two benzene rings bound to each other or to alkylene groups, which in turn are linked to M¹ and M². Invention also relates to novel bidentate ligands, which can be utilized in the method of invention and having following general formulas: R¹R²M¹-V-M²R³R⁴ (II) and Q¹Q²M¹-Q⁵-Ar¹-Q⁶-M²Q³Q⁴ (III). Invention further relates to improved method for production of 1-octene involving 1,3-butadiene telomerization step to form 1-substituted 2,7-octadiene.

EFFECT: expanded synthetic possibilities in conjugated dienes area.

10 cl, 1 dwg, 1 tbl, 10 ex