申请人:——
公开号:US20010014761A1
公开(公告)日:2001-08-16
A process for preparing compounds of the formula:
1
wherein R
2
is lower alkyl; or phenyl optionally substituted by from one to five groups, the same or different, which are lower alkyl, lower haloalkyl, halogen or —SR
4
; R
3
is halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, —S-alkyl, cycloalkyl having from 3 to 7 carbon atoms in the ring, alkenyl or alkynyl having from 3 to 7 carbon atoms, or —(CR
5
R
6
)—SR
2
wherein q is one or two; R
4
is lower alkyl; R
5
and R
6
independently represent hydrogen, lower alkyl or lower haloalkyl; and n is zero or an integer from one to three; intermediate compounds of the formula:
2
and processes for preparing them.
一种制备公式为1的化合物的方法:其中R2为低碳基;或苯基,可选地被从一个到五个相同或不同的基团取代,所述基团为低碳基,低卤代烷基,卤素或-SR4;R3为卤素,低碳基,低卤代烷基,低烷氧基,低卤代烷氧基,-S-烷基,环烷基,环中含有3到7个碳原子,烯基或炔基,具有3到7个碳原子,或-(CR5R6)-SR2,其中q为1或2;R4为低碳基;R5和R6分别表示氢,低碳基或低卤代烷基;n为0或1至3的整数;公式2的中间体化合物及其制备方法。