An Aldehyde Derivative

• J. Hodge Markgraf ^[1] ; Bo Yoon Choi ^[1]
  1. [1] Williams College

     Williams College

     Town of Williamstown, Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 75, Nº 2 (February), 1998, págs. 222-223
• Idioma: inglés
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• Resumen

  • In connection with qualitative analysis schemes for organic laboratory experiments, a safe and convenient procedure is described for the small-scale preparation of an aldehyde derivative. Aliphatic and aromatic aldehydes are converted to 3-substituted-1,5-dihydro-2,4-benzodithiepines in high yield when treated with 1,2-benzenedimethanethiol in dichloromethane at room temperature with catalysis by ferric chloride on silica gel. The products are readily recrystallized from ethanol. Melting points for 27 derivatives are tabulated.