Triethylamine → 3-Chloro-4-methylbenzaldehyde

Participants

Reaction Steps

To a solution of 3-chloro-4-methylbenzyl alcohol (2.00 g) and triethylamine (8.9 ml) in a dimethyl sulfoxide (10 ml) was added sulfur trioxide-pyridine complex (4.47 g) under ice-cooling, and the mixture was stirred at room temperature for 3 hr. The reaction mixture was poured into ice water, and extracted with ether. The organic layer was washed with 1N hydrochloric acid, saturated brine and a saturated aqueous sodium hydrogencarbonate solution, dried over magnesium sulfate, and concentrated to dryness under reduced pressure to give the objective compound (1.40 g) as a pale-yellow oil.

Provenance & Evidence