Synthesis and Dimerization 2,3-Dimethyl-5-Silaspiro(4,4)nona-2,7-diene

Abstract

Unsymmetrical 2,3-dimethyl-5-silaspiro(4,4)nona-2,7-diene (I) has been prepared by a dissolving metal reaction between 1,1-dichloro-1- silacyclopent-3-ene (III) and 2,3-dimethyl-1,3-butadiene. Ring opening reactions of I catalyzed by alkyllithium reagents and hexamethylphosphoramide (HMPA) have been explored. High yields of the dimer 2,3,12,13-tetramethyl-5,10- disiladispiro(4,4,4,4)octadeca-2,7,12,16-tetraene (II) are formed in these reactions. Dimerization of 2,3-Dimethyl-5-silaspiro(4,4)nona-2,7-diene, 5,10- disiladispiro(4,4,4,4)octadeca-2,7,12,16-tetraene, Structure by X-ray crystallography, Polymers, Composite materials, Organic chemistry, Oligomers, Appendix VII, Organometallic compounds.

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Document Details

Document Type
Technical Report
Publication Date
May 09, 1990
Accession Number
ADA221638

Entities

People

  • Dong Zhao
  • Georges Manuel
  • Robert Bau
  • Stephen Q. Zhou
  • Young T. Park

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Butadienes
  • Chemical Compounds
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Crystallography
  • Dienes
  • Dissolving
  • High Resolution
  • Hydrocarbons
  • Materials
  • Materials Science
  • Organic Chemistry
  • Resonance
  • Spectra
  • X Rays
  • X-Ray Crystallography

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry