| 摘要 |
Cpds. of formula: (where R is H or an opt. halo-substd. 1 - 4C aliphatic gp.; X is alkyl, haloalkyl, alkoxy, alkylthio halogen, alkylsulphonyl, CN or R1R2NCO; R1 and R2 are H or opt. halo-substd. aliphatic gps.; n = 0 - 3) may be prepd. by reacting a phenyl isothiocyanate with Cl2 in the presence of an alkyl isocyanate. |
