N,N-Diethylethylenediamine → HCID 21486957, compound

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Reaction Steps

To 10 parts by volume of 2-diethylaminoethylamine is added 3.0 parts of 6,7-dimethoxy-1-phenyl-3,4-dihydro-2(1H)-isoquinolinecarbonyl chloride. An exothermic reaction ensues. The mixture is heated over a steam bath for approximately 30 minutes. (Alternatively, the mixture is maintained at room temperature overnight.) The reaction mixture is then poured into water and extracted with ethyl ether. The ether layer is dried over anhydrous calcium sulfate and evaporated to dryness. The solid thus obtained is crystallized from a mixture of ethyl ether and n-hexane to afford N-(2-diethylaminoethyl)-6,7-dimethoxy-1-phenyl-3,4-dihydro-2(1H)-isoquinolinecarboxamide, melting at about 97°-98°C.

Provenance & Evidence