Potassium Carbonate → N-[2-(4-methoxyphenyl)-1,3-dioxolan-2-ylmethyl]-N'-(2-methylpropyl)thiourea

Beteiligte Stoffe

Reaktionsschritte

A mixture of 22 parts of 2-(4-methoxyphenyl)-1,3-dioxolane-2-methanamine hydrochloride, 11.5 parts of 1-isothiocyanato-2-methylpropane, 20.7 parts of potassium carbonate and 200 parts of 2-propanol is stirred and refluxed for 3 hours. The reaction mixture is filtered while hot and the filtrate is evaporated. The solid residue is crystallized from a mixture of benzene and petroleumether. The product is filtered off and dried, yielding 26 parts (89.65%) of N-[2-(4-methoxyphenyl)-1,3-dioxolan-2-ylmethyl]-N'-(2-methylpropyl)thiourea; mp. 96° C.

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