申请人:——
公开号:EP0201203A3
公开(公告)日:1988-12-14
A method of regulating plant growth at a locus which comprises applying to the locus an effective amount of a compound of the general formula:
wherein R' and R2, which are the same, each represent a straight-or branched-chain alkyl group containing from 1 to 6 carbon atoms and R3 represents a phenyl group bearing substituents R' and (RS)n;wherein R' represents a cyano group, a straight-or branched-chain alkyl group containing from 1 to 4 carbon atoms which is fully substituted by halogen atoms, which may be the same or different, in the meta or para position; a hydroxy group or a fluorine or iodine atom in the meta position; a chlorine or bromine- atom or a nitro group or straight-or branched-chain alkoxy or alkylthio group containing from 1 to 4 carbon atoms which is fully substituted by halogen atoms, which may be the same or different, in the para position and R5 represents a hydrogen atom and n is 1;or R4 represents a fluorine, chlorine, bromine or iodine atom, a cyano, hydroxy or nitro group, or a straight-or branched-chain alkoxy or alkylthio group containing from 1 to 4 carbon atoms which is fully substituted by halogen atoms, which may be the same or different, or a straight-or branched-chain alkyl group containing from 1 to 4 carbon atoms which is unsubstituted or fully substituted by halogen atoms, which may be the same or different, and R5 represents a fluorine, chlorine, bromine or iodine atom, a cyano, hydroxy or nitro group, or a straight-or branched-chain alkoxy or alkylthio group containing from 1 to 4 carbon, atoms which is fully substituted by halogen atoms, which may be the same or different, or a straight-or branched-chain alkyl group containing from 1 to 4 carbon atoms which is unsubstituted or fully substituted by halogen atoms, which may be the same or different, and n is 1 or 2;it being understood that:
a) when n is 1, R4 and R5 do not both represent unsubstituted alkyl groups, hydroxy groups or nitro groups and are different when in the 2,3-or 2,5-positions,b) when n is 2, one of the substituents represented by R4 and R5 is different from the others and does not represent an unsubstituted alkyl group, the positions of the various substituents on the phenyl ring referred to above being with respect to the nitrogen atom to which the phenyl ring is attached, is disclosed.Those compounds of the general formula depicted in Figure I which are new and their processes of preparation are further features of the present invention.
一种调节植物生长的方法,包括在所述位点上施用一种通式如下的化合物的有效量:其中R'和R2相同,分别表示含有1至6个碳原子的直链或支链烷基,R3表示带有取代基R'和(RS)n的苯基;其中R'表示氰基,直链或支链烷基,含有1至4个碳原子,被卤素原子完全取代,可以是相同的或不同的,在间位或对位上;在间位有氟或碘原子;在对位上有氯或溴原子或硝基或直链或支链烷氧基或烷硫基,其含有1至4个碳原子,被卤素原子完全取代,可以是相同的或不同的,并且R5表示氢原子,n为1;或者R4表示氟、氯、溴或碘原子、氰基、羟基或硝基,或含有1至4个碳原子的直链或支链烷氧基或烷硫基,被卤素原子完全取代,可以是相同的或不同的,或者含有1至4个碳原子的直链或支链烷基,未被卤素原子取代或被卤素原子完全取代,可以是相同的或不同的,R5表示氟、氯、溴或碘原子、氰基、羟基或硝基,或含有1至4个碳原子的直链或支链烷氧基或烷硫基,被卤素原子完全取代,可以是相同的或不同的,或者含有1至4个碳原子的直链或支链烷基,未被卤素原子取代或被卤素原子完全取代,n为1或2;其中理解:a)当n为1时,R4和R5不同时代表未取代的烷基、羟基或硝基,并且在2,3或2,5位时不同;b)当n为2时,由R4和R5代表的取代基中有一个与其他取代基不同,并且不代表未取代的烷基,上述苯环上各个取代基的位置是相对于连接苯环的氮原子而言的。本发明还公开了通式如图I所示的新化合物及其制备方法。