CHM2123 Lab 5

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Lab 5 Oxidation of an alcohol CHM2123 Introduction: Oxidation is a key reaction in organic chemistry. Oxidation of an alcohol can produce aldehydes, ketones, or carboxylic acids. One of the methods of oxidation is an aldol reaction through carbon-carbon bonds. The oxidation oxidizes primary alcohols to aldehydes and secondary alcohols oxidizes ketones. Tertiary alcohols are converted to the common oxidizing agents. Scheme 5.1: Aldehydes can be oxidized easily to carboxylic acids in aqueous medias and could cause over-oxidization because there is an extra hydrogen adjacent to the aldehyde. Though over-oxidization of carbonyls is possible with aldehydes, it is not possible with ketones. Ketones lack the easily removed hydrogen that is…show more content…
D: 2.70g/mL M: 184.23g/mol v=1.0mL D=m/v m=D(v) m=2.70(g/mL)(1.0mL) m=2.70g n=m/M n=2.70g/184.23g/mol n=0.0147mol TLC Plates: S: Starting Material C: Co-Spot Rx: Reaction Rf: Reference Rec: Recrystallization Discussion: In the first part of the lab, the goal of this experiment was to carry out an oxidation of diphenylmethanol with a solid oxidant that is composed of KMnO4 and CuSO4. 1.0mL of diphenylmethanol was placed into a flask with 4g of oxidant (5:3 KMnO4:CuSO4.5H2O) and mixed together with a rod instead of a magnetic stirrer because it might over stir it and heat it up too much. We wanted the flask to be warm and not too hot. After the flask was clamped with a condenser into 400mL of boiling water. The condenser was to prevent solution evaporation which is to cool the flask and doesn 't allow the solution to evaporate. The flask was
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