International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565

International Journal of Chemical Studies

Vol. 1, Issue 4 (2013)
Polymer Supported Sodium Chromate Oxidation of 1-Phenylethanol: A Kinetic Mechanistic Study


The  polymer supported reagent reacts with a molecule of 1-Phenylethanol to form a  chromate ester.
Fig. 1: The polymer supported reagent reacts with a molecule of 1-Phenylethanol to form a chromate ester.


The  ester formed will decompose into ketone and the intermediate chromium  (IV) will  be formed in the second and slow step.
Fig. 2: The ester formed will decompose into ketone and the intermediate chromium (IV) will be formed in the second and slow step.


The  intermediate chromium (IV) thus reacts with another alcohol molecule to produce  a free radical species.
Fig. 3: The intermediate chromium (IV) thus reacts with another alcohol molecule to produce a free radical species.


Subsequently  the free radical will react with another oxidant site in the polymeric reagent  in a fast step leading to the formation of chromium (V).
Fig. 4: Subsequently the free radical will react with another oxidant site in the polymeric reagent in a fast step leading to the formation of chromium (V).


The  intermediate chromium (V) in the last step reacts with 1-phenylethanol   produce acetophenone.
Fig. 5: The intermediate chromium (V) in the last step reacts with 1-phenylethanol produce acetophenone.


International Journal of Chemical Studies