POLYARYLSILANE MONODENDRONS AND METHOD OF OBTAINMENT Russian patent published in 2009 - IPC C08G77/28 

FIELD: chemistry.

SUBSTANCE: invention concerns chemical technology of organic silicon compounds. Invention claims new polyarylsilane monodendrons and method of their obtainment. Monodendrons have general formula (I) , where R₁ is a substitute from: linear or forked C₁-C₂₀ alkyl groups; linear or forked C₁-C₂₀ alkyl groups separated by at least one oxygen atom; linear or forked C₁-C₂₀ alkyl groups separated by at least one sulphur atom; forked C₃-C₂₀ alkyl groups separated by at least one silicon atom; C₂-C₂₀ alkenyl groups; Ar is arylene radicals, equal or different independently for each n and m and selected out of: substituted or non-substituted thienyl-2,5-diyl of general formula (II-a) , substituted or non-substituted phenyl-1,4-diyl of general formula (II-b) , substituted or non-substituted 1,3-oxazol-2,5-diyl of general formula (II-c) , substituted fluorene-4,4'-diyl of general formula (II-d) , where R₂, R₃, R₄, R₅, R₆ are independently H or substitute out of range indicated for R₁; R₇ is substitute out of range indicated for R₁; L is 1 or 3 or 7 or 15; m is integer from 2 to 6, n is integer from 1 to 6. Method of obtaining dendrimers involves reaction of compounds of general formula (III), , where X, R₁, Ar, L, n and m are as defined above, with lithiation agent of general formula R₈Li, where R₈ is linear or forked C₁-C₁₀ alkyl or dialkylamide of phenyl group; further interaction of obtained compound with functional compound selected out of compound range of formula X-Ar_nMeSiY₂, where Y is Cl or Br or -OCH₃ or -OC₂H₅ or -OC₃H₇ or -OC₄H₉. Claimed monodendrons can be applied as source substance in polyarylsilane dendrimer synthesis. Method of obtaining monodendrons is highly processable and does not require expensive catalysts.

EFFECT: synthesis of new polyarylsilane monodendrons, including ones of large generations.

25 cl, 13 dwg, 13 ex