反应详情

A solution of 2-(2-aminoethylthiomethyl)-4-methoxypyridine (3.15 g) in ethanol (25 cc) was added over 1 hour to a stirred solution of dimethyl N-cyano-dithioimidocarbonate (2.215 g) in ethanol (30 cc) at 22° and the mixture was allowed to stand overnight at room temperature. Nitrogen was passed through the suspension and the mixture was filtered to give N-cyano-N'-[2-((4-methoxy-2-pyridyl)methylthio)ethyl]-S-methylisothiourea m.p. 91.5°-92.5°. (3.9 g).

1. filtrationthe mixture was filtered