1.

Explain Swern oxidation of propan-2-ol to propanane.

Answer»

Solution :(i) In this method, DIMETHYL sulfoxide (DMSO) is used as the oxidising agent, which converts ALCOHOLS to ketones l aldehydes.
(ii) In this method an alcohol is TREATED with DMSO and oxalyl chloride FOLLOWED by the addition of triethylamine.
`underset("Propan-2-ol")(CH_(3)-overset(OH)overset(|)CH-CH_(3)) + H_(3)C-underset(darr)underset(DMSO)overset(O)overset(||)S-CH_(3) +underset("Oxalychloride")(Cl-overset(O)overset(||)C-overset(O)overset(||)C-Cl)`
`underset("propanone")(CH_(3)-overset(O)overset(||)C-CH_(3)) +(CH_(3))_(2)S + CO_(2) + CO + 2HCl`


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