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  Home > JCE Print > Journal of Chemical Education > Issues > 2008  > January  >
In the Laboratory
The Microscale Laboratory
Regioselectivity in Organic Synthesis: Preparation of the Bromohydrin of α-Methylstyrene
Brad Andersh, Kathryn N. Kilby, Meghan E. Turnis, and Drew L. Murphy
Department of Chemistry and Biochemistry, Bradley University, Peoria, IL 61625
Cover
January 2008
Vol. 85 No. 1
p. 102

Abstract
In the described experiment, the regiochemical outcome of the addition of "HOBr" to α-methylstyrene is investigated. Although both "classic" qualitative analysis and instrumental techniques are described, the emphasis of this experiment is on the utilization 13C and DEPT-135 NMR spectroscopy to determine the regiochemical outcome of the addition. As expected, 1-bromo-2-phenyl-2-propanol is the major product from the reaction of α-methylstyrene and N-bromosuccinimide in 95% acetone (aq).
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Instructor notes, student handouts, and copies of all spectra are available.
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Citation
Andersh, Brad; Kilby, Kathryn N.; Turnis, Meghan E.; Murphy, Drew L. J. Chem. Educ. 2008, 85, 102.
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Keywords
Addition Reactions; Alcohols; Alkenes; Constitutional Isomers; Hands-On Learning / Manipulatives; IR Spectroscopy; Laboratory Instruction; Microscale Lab; NMR Spectroscopy; Organic Chemistry; Second-Year Undergraduate; Synthesis
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History
Created:
Last Updated:
12/4/2007
12/12/2007
  Home > JCE Print > Journal of Chemical Education > Issues > 2008  > January  > Page 102


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