反应详情

温度

150 °C

A suspension of 1.2 grams of (0.010 mole) of N-cyano-S-methylisothiourea [prepared in the manner disclosed by R. W. Turner; Synthesis, 332 (1975)], 2.1 grams (0.010 mole) of 4-(2-chlorophenyl)cyclohexanone and 0.4 gram (0.005 mole) of pyrrolidine is placed in a glass tube, which is then sealed. The sealed tube is heated at 150° C. for about seven hours. After this time, the sealed tube is cooled in an ice-bath and opened. The reaction mixture is concentrated under reduced pressure to a residue. The residue is subjected to column chromatography using silica gel, yielding 4-amino-2-methylthio-6-(2-chlorophenyl)-5,6,7,8-tetrahydroquinazoline.

1. customprepared in the manner
2. customis placed in a glass tube
3. customwhich is then sealed
4. temperatureAfter this time, the sealed tube is cooled in an ice-bath
5. concentrationThe reaction mixture is concentrated under reduced pressure to a residue