Acid-Catalyzed Condensation Reaction of Phenylsilanetriol: Unexpected Formation of cis,trans-1,3,5-Trihydroxy-1,3,5-triphenylcyclotrisiloxane as the Main Product and Its Isolation
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- 作者：Fujio Yagihashi ; Masayasu Igarashi ; Yumiko Nakajima ; Wataru Ando ; Kazuhiko Sato ; Yoshiyuki Yumoto ; Chinami Matsui ; Shigeru Shimada
- 刊名：Organometallics
- 出版年：2014
- 出版时间：November 24, 2014
- 年：2014
- 卷：33
- 期：22
- 页码：6278-6281
- 全文大小：297K
- ISSN：1520-6041
文摘
cis,trans-1,3,5-Trihydroxy-1,3,5-triphenylcyclotrisiloxane was successfully isolated and fully characterized by spectroscopic methods and single-crystal X-ray diffraction. This compound was believed to be highly unstable and only exist as a transient species in low concentration during the condensation reaction of phenylsilanetriol or its precursors. The isolated pure cyclotrisiloxane is, however, surprisingly stable even in acidic solution and partially isomerizes to the cis,cis isomer.