Methanesulfonic Acid → HCID 14026543, compound

Participants

Reaction Conditions

Reaction Steps

Under a nitrogen atmosphere, thionylchloride (4 ml, 58 mmol) and methanesulphonic acid (9 mL, 146 mmol) were refluxed for 90 min. 4-Nitrotoluene (4 g, 29 mmol) and triflouromethanesulphonic acid (200 uL, 3 mmol) were added and the mixture was allowed to stand for 48 hours at 120° C. The mixture was cooled to 0° C. and water (50 mL) was carefully added, followed by addition of ethyl acetate (150 mL). The organic phase was separated and extracted with a saturated solution of sodium hydrogencarbonate (2×50 mL) and water (2×50 mL). The organic phase was dried (MgSO4) and concentrated in vacuo. The residue was purified by flash chromatography (heptane/ethylacetate, 1:1) to give 0.75 g of 2-methylsulfonyl-1-methyl-4-nitrobenzene.

Provenance & Evidence