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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > February  >
In the Laboratory
An Aldehyde Derivative
J. Hodge Markgraf and Bo Yoon Choi
Williams College, Department of Chemistry, Thomas Chemical Laboratory, Williamstown, MA 01267-2692
Cover
February 1998
Vol. 75 No. 2
p. 222
Abstract
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.
More Information
*  Citation
 Markgraf, J. Hodge; Choi, Bo Yoon. J. Chem. Educ. 1998 75 222.
*  Keywords
 Organic Chemistry, Laboratory Instruction, and Analytical Chemistry
*  History
 Created:
Last Updated:		 June 28, 1999
June 24, 2005
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