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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > June  >
In the Classroom
SOS: A Mnemonic for the Stereochemistry of Glucose
Ronald Starkey
Department of Chemistry, University of Wisconsin-Green Bay, Green Bay, WI 54311-7001
Cover
June 2000
Vol. 77 No. 6
p. 734
Abstract
The mnemonic SOS (Same, Opposite, Same) can be helpful to recall the stereochemistry in either D-glucose or L-glucose. It refers to the configurations of C-2, C-3, and C-4 relative to that of C-5 in an aldohexose. Same and Opposite refer to either the R or S configuration or to the relative positions of the OH groups on the Fischer projection structural formula. The SOS mnemonic can help to reinforce that gluco specifies the relative configurations of stereocenters in the molecule.
More Information
*  Citation
 Starkey, Ronald. J. Chem. Educ. 2000 77 734.
*  Keywords
 Carbohydrates; Stereochemistry; Organic Chemistry; Teaching / Learning Aids
*  History
 Created:
Last Updated:		 April 25, 2000
April 15, 2005
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