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Multiple Choice

Oxidation of a primary alcohol using PCC in suitable solvent yields which product?

PCC is a mild, selective oxidant that converts primary alcohols to aldehydes under anhydrous conditions. The primary alcohol loses two hydrogens to form the aldehyde (-CHO), and because the medium is dry and PCC is not a very strong oxidant, further oxidation to a carboxylic acid is not favored. For example, ethanol treated with PCC in dichloromethane at room temperature gives acetaldehyde, not acetic acid. If stronger oxidants or water were present, you could push the oxidation further to the carboxylic acid, but with PCC in a suitable solvent the aldehyde is the product.

PCC is a mild, selective oxidant that converts primary alcohols to aldehydes under anhydrous conditions. The primary alcohol loses two hydrogens to form the aldehyde (-CHO), and because the medium is dry and PCC is not a very strong oxidant, further oxidation to a carboxylic acid is not favored. For example, ethanol treated with PCC in dichloromethane at room temperature gives acetaldehyde, not acetic acid. If stronger oxidants or water were present, you could push the oxidation further to the carboxylic acid, but with PCC in a suitable solvent the aldehyde is the product.