Cysteamine Hydrochloride → 5-(((2-Aminoethyl)thio)methyl)-N,N-dimethyl-2-furanmethanamine

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Reaction Steps

5-(Dimethylamino)methyl-2-furanmethanol (15.5 g) was added dropwise to a stirred, ice-cold solution of cysteamine hydrochloride (11.36 g) in concentrated hydrochloric acid (40 ml). After standing at 0° for 18 hr, excess anhydrous sodium carbonate was added and the resultant solid extracted with diethyl ether. Removal of solvent followed by distillation of the residue gave 2-[[[5-(dimethylamino)methyl-2-furanyl]methyl]thio]ethanamine (11.6 g) b.p. 104°-106° (0.1 mm). Picrate salt m.p. 142°-144°.

Provenance & Evidence