A novel class of compounds which are useful as plant growth regulators has the general structural formula ##STR1## in which R is H or CH.sub.3, R' is halogen, trifluoromethyl, cyano or C.sub.1 to C.sub.3 alkyl or alkoxy and n is zero or an integer from 1 to 2. The compounds are synthesized by reacting a compound of the formula ##STR2## with an isocyanate of the formula ##STR3## under basic conditions in a non-reactive, polar organic solvent.
一种新型的化合物类,可用作
植物生长调节剂,其一般结构式为##STR1## 其中R为H或CH.sub.3,R'为卤素、三
氟甲基、
氰基或C.sub.1到C.sub.3烷基或烷氧基,n为零或1至2的整数。这些化合物是通过在非反应性极性有机溶剂中,在碱性条件下将式##STR2##的化合物与式##STR3##的异腈反应合成的。