(09-17-07) Chem 3BL magtrieve

(09-17-07) Chem 3BL magtrieve - Arthur Yu Chem 3BL, Section...

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Arthur Yu Chem 3BL, Section 113 Lab 1: Magtrieve Oxidation of 4-Chlorobenzyl Alcohol Discussion Magtrieve was introduced as a “green chemistry” replacement for traditional oxidative reagents, such as PCC or MnO 2 . Many chemists have been adapting green chemistry recently, as there are environmental and health consequences to these traditional reagents. Mo Hunsen, from Kenyon College, writes of a novel approach to oxidize alcohols to aldehydes and ketones with periodic acid (H 5 IO 6 ), and using PCC as catalyst 1 . Acknowledged in Hunsen’s article is the suspicion that PCC, which contains chromium(IV), poses a risk to living organisms like the chemists who handle it. This new oxidation of primary and secondary alcohols to aldehydes and ketones only uses 0.02 mol PCC and 1.05 mol of co-oxidant periodic acid, per mol of oxidized alcohol. This procedure does greatly reduce the amount of PCC required by 50-fold. This means less risk to chemists – like less cancer from chromiun 2 . PCC is still unrecyclable, however, as
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(09-17-07) Chem 3BL magtrieve - Arthur Yu Chem 3BL, Section...

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