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Synlett 1999; 1999(S1): 843-846
DOI: 10.1055/s-1999-3086
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New Gem- and Vic-Disubstituent Effects on Cyclizations

Michael E. Jung*
  • *Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, USA; E-mail: jung@chem.ucla.edu
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Publication Date:
31 December 1999 (online)

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Several new gem-disubstituent effects on cyclizations - e.g., the gem-dialkoxy, -dicarboalkoxy, and -dithioalkoxy effects, have been discovered. In addition we have also observed a new vicinal disubstituent effect. A novel ring size effect of ketals on radical cyclizations has been investigated.

solvent effects on cyclizations - radical cyclizations - intramolecular cycloadditions - oxetane synthesis