申请人:——
公开号:US20020040157A1
公开(公告)日:2002-04-04
Compounds of the formula I
1
and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III
2
In the compounds of the formulae I and III:
X is halogen,
n is 0,1,2 or 3;
Z is CN, CO—A or CS—A,
A is hydrogen, halogen, OR
1
, SR
2
and N(R
3
)R
4
;
R
1
to R
4
are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R
3
and R
4
, together with the nitrogen atom to which they are bonded, are a 5- or 6-membered, substituted or unsubstituted heterocyclic radical having 1-3 heteroatoms O, S and/or N.
Processes for the preparation of compounds of the formula I are described.
公式I1及其二硫化物和盐是制备具有杀菌和植物免疫作用的公式III2化合物的重要中间体。在公式I和III的化合物中:X为卤素,n为0、1、2或3;Z为CN、CO—A或CS—A,A为氢、卤素、OR1、SR2和N(R3)R4;R1至R4为氢、含有不超过8个碳原子的取代或未取代的开链、饱和或不饱和碳氢基团,含有不超过10个碳原子的取代或未取代的环状、饱和或不饱和碳氢基团,取代或未取代的苄基或苯乙基、含有不超过8个碳原子的取代或未取代的烷酰基团、取代或未取代的苯甲酰基团或取代或未取代的杂环基团;或R3和R4与它们所连接的氮原子一起形成一个含有1-3个杂原子O、S和/或N的取代或未取代的5-或6元杂环基团。描述了制备公式I化合物的方法。