A compound of the formula: ##STR1## wherein X and Y are independently selected from cyano and alkoxycarbonyl containing from 1 to 4 carbon atoms in the alkoxy group, and Q, R and Z are independently selected from chlorine and bromine provided that Q is always bromine when either Z or R is bromine. The compounds are useful as chemical intermediates.
一种化合物的公式:##STR1## 其中X和Y独立地选择自
氰基和含有1至4个碳原子的烷氧羰基,而Q、R和Z独立地选择自
氯和
溴,但当Z或R为
溴时,Q始终为
溴。这些化合物可用作
化学中间体。