METHOD OF OBTAINING 1-ETHYL-3-[(OXYPHENYL)METHYL]ALUMINACYCLOPENTANES Russian patent published in 2015 - IPC C07F5/06 

FIELD: chemistry.

SUBSTANCE: invention relates to field of organometallic synthesis, namely to method of obtaining 3-(oxyphenyl)methyl-substituted aluminacyclopentanes of general formula (1a-e): a) R₁=R₃=H, R₂=OMe; b) R₁=H, R₂=R₃=OMe; c) R₁=H, R₂=OMe, R₃=OH; d) R₁=R₂=R₃=OMe; e) R₁=H, R₂, R₃=OCH₂O. Method includes interaction of allylbenzenes with triethylaluminium (AlEt₃) in presence of catalyst Cp₂ZrCl₂. As allylbenzene used are substituted allylbenzenes, namely: allylanisole, 4-allyl-1,2-dimethoxybenzene, 4-allyl-2-methoxyphenol, 5-allyl-1,2,3-trimethoxybenzene, 5-allyl-1,3-benzodioxol. Reaction is carried out in molar ratio allylbenzene: AlEt₃ : [Zr] = 50:(150-180):(1-2) at temperature 20-22°C for 16 hours in toluene.

EFFECT: invention makes it possible to obtain novel compositions, which can be applied in reactions of stereoregular poly- and oligomerisation of unsaturated compounds, as synthons of fine organic synthesis.

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