摘要:
公式为##STR1##的化合物,其中R为卤素,C.sub.1-C.sub.2烷基,硝基,C.sub.1-C.sub.2卤代烷基,C.sub.1-C.sub.2烷氧基,C.sub.1-C.sub.2烷基硫基或C.sub.1-C.sub.2烷基磺酰基; R.sup.1为氢或C.sub.1-C.sub.2烷基; R.sup.2为氢或C.sub.1-C.sub.2烷基; R.sup.3为氢或C.sub.1-C.sub.2烷基; R.sup.4和R.sup.5分别为(1)氢; (2)卤素; (3)C.sub.1-C.sub.4烷基; (4)C.sub.1-C.sub.4烷氧基; (5)三氟甲氧基; (6)氰基; (7)硝基; (8)C.sub.1-C.sub.4卤代烷基; (9)R.sup.b SO.sub.n-其中n是整数0,1或2; R.sup.b为(a)C.sub.1-C.sub.4烷基,(b)卤素或氰基取代的C.sub.1-C.sub.4烷基,(c)苯基;或(d)苄基; (10) --NR.sup.c R.sup.d其中R.sup.c和R.sup.d独立地为氢或C.sub.1-C.sub.4烷基; (11) R.sup.3 C(O)-其中R.sup.3为C.sub.1-C.sub.4烷基或C.sub.1-C.sub.4烷氧基;或(12) --SO.sub.2 NR.sup.c R.sup.d其中R.sup.c和R.sup.d如定义;以及(13) --N(R.sup.c)C(O)R.sup.d其中R.sup.c和R.sup.d如定义。