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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 8, Number 4
BKCSDE 8(4)
April 20, 1987 

 
Title
Synthesis of 1,1-Dichloro-2,3,4,5-Tetraphenyl-1-Silacyclopenta-2,4-diene and Its Reaction with Alkali Metal: Evidence for the Formation of Silylanion
Author
Wan-Chul Joo*, Yoon Chang Park, Suk Ku Kang, Jang Hwan Hong, Young-Kun Kong
Keywords
Abstract
1,1-Dichloro-2,3,4,5-tetraphenyl-1-silacyclopenta- 2,4-diene was synthesized through the reaction of SiCl4 with 1,4-dilithiotetraphenylbutadiene in 50% yield. From the reaction of this silole with metal, an air sensitive red-brownish solid was obtained. Treatment of this reaction product with CH3I and Me3SiCl gave 1,1-dimethyl-2,3,4,5-tetraphenyl-1-silacyclopenta- 2,4-diene and 1,1-bis(trimethylsilyl)-2,3,4,5-tetraphenyl-1-sila cyclopenta-2,4-diene, respectively. From these results, the formation of reactive 2,3,4,5-tetraphenyl-1-silacyclopenta-2,4-dienyl dianion was confirmed.
Page
270 - 272
Full Text
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