Synthesis of 1,1,3,4-Tetramethyl-1-sila-2,4-Cyclopentadiene

Synthesis of 1,1,3,4-Tetramethyl-1-sila-2,4-Cyclopentadiene

The compound 1,1,3,4-tetramethyl-1-sila-3-cyclopentene was obtained through the reaction of 2,3-dimethylbutadiene and dichlorodimethyl-silane in THF in the presence of sodium metal. After the bromination of this compound at $0^{\circ}C$ for 2 hrs and dehydrobromination by using a base, we prepared 1.1.3.4-tetramethyl-1-sila-2,4-cyclopentadiene, Which could undergo dimerization. The identification has been done by using $^1H-,^{13}C-$ and C/H-Correlation two dimensional nmr spectroscopies.

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