Acetonitrile → N,N-Bis[2-((phenoxycarbonyl)oxy)ethyl]-N,N-dimethylammonium p-Toluene-sulfonate

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Reaction Steps

To a 250 ml round-bottomed flask fitted with a reflux condenser, magnetic stirrer, and argon inlet are added N,N-bis[2((phenoxycarbonyl)oxy)ethyl]-N-methylamine (25.00 g, 69.6 mmol), acetonitrile (100 ml), and methyl p-toluenesulfonate (12.95 g, 69.6 mmol). After addition is complete, the mixture is heated to reflux for 2 h. The cooled mixture is treated with ether (500 ml). The product precipitates from the mixture and dried to give 5 as a white powder, 31.14 g (81%): mp 117°-118° C.

Provenance & Evidence