METHOD OF OBTAINING ALKYNYLSILANES Russian patent published in 2009 - IPC C07F7/08 

FIELD: chemistry.

SUBSTANCE: invention relates to obtaining alkynylsilanes with general formula R¹ _nSi(C≡CR')_4-n, where n=1-3; R¹=alkyl; R'=alkyl, aryl, oxyalkyl, which are widely used in fine organic synthesis. Proposal is made to use equimolar amount of zinc halide and tertiary amine in the reaction between halogen silane with general formula R1nSiX4-n, and 1-alkyl, with general formula R'C=CH, and carry out the process while heating in an organic solvent medium at it boiling point in R¹ _nSiX_4-n+n R'C≡CH+n ZnX₂+n R² ₃N → R¹nSi(C≡CR)_4-n,+n[R² ₃NH]⁺[ZnX₃]^- in accordance with model: 1) n=3; X=Cl, Br, J; R¹=CH₃; R²=CH₃CH₂; R'=C₆H₅. 2) n=3; X=Br, J; R¹=CH₃; R²=CH₃CH₂; R'=C₆H₅CH₂OCH₂. 3) n=3; X=Br, J; R¹=CH₃; R²=CH₃CH₂; R'=CH₃CH₂CH₂CH₂. 4) n=2; X=Cl, J; R¹=CH₃; R²=CH₃CH₃; R'=C₆H₅. 5) n=2; X=Cl, J; R¹=CH₃; R²=CH₃CH₂; R'=4-BrC₆H₄. 6) n=1; X=Cl, J; R¹=CH₃; R²=CH₃CH₂; R'=C₆H₅. 7) n=1; X=Cl, J; R₁=CH₃CH₂; R₂=CH₃CH₂; R'=C₆H₅.

EFFECT: design of a simple method of obtaining alkynylsilanes while cutting production costs of the obtained products through use of cheaper and accessible reagents.

5 cl, 1 tbl, 10 ex