p-Toluenesulfonic acid → HCID 22467418, compound

Participants

Reaction Steps

To a solution of N-(3,4-dimethoxybenzyl)-2-[2-hydroxy-1-(hydroxymethyl)ethylamino]-5-nitrobenzamide (117 mg) in dichloromethane (5.0 mL) were added 2,2-dimethoxypropane (0.36 mL) and 4-toluenesulfonic acid (10 mg), and the mixture was stirred for 30 minutes under reflux. The resulting mixture was diluted with ethyl acetate and washed successively with diluted sodium bicarbonate and brine. The organic layer was dried over sodium sulfate and evaporated in vacuo. The residue was triturated with diethyl ether to give N-(3,4-dimethoxybenzyl)-2-(2,2-dimethyl-1,3-dioxan-5-ylamino)-5-nitrobenzamide (105 mg) as a solid substance.

Provenance & Evidence