摘要:
Compounds of formula (I), useful as insecticides and knockdown agents: ##STR1## where Y is C.sub.1-6 alkoxy, Z is halo or C.sub.1-6 alkoxy; R is --(CH.sub.2).sub.p --(O).sub.m --R.sup.3 where m and p may be 0 or 1; R.sup.3 is C.sub.1-6 alkyl, phenyl or benzyl, or when m is 0, R.sup.3 is C.sub.1-6 alkenyl, haloalkenyl, alkynyl or haloalkynyl, and either (a) A and B are both C.sub.1-4 alkyl or (b) A is hydrogen and B is (R.sup.1)(R.sup.2)C.dbd.CH-- where R.sup.1 and R.sup.2 are selected from methyl, chloro, bromo, fluoro and trifluoromethyl.
摘要:
A process is described by which the pair of isomers represented by (R)-.alpha.-cyano-4-fluoro-3-phenoxybenzyl (1R,cis)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylate and its enantiomer is converted by base catalyzed epimerization in solution into the insecticidally more useful isomer pair represented by (S)-.alpha.-cyano-4-fluoro-3-phenoxybenzyl (1R,cis)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylate and its enantiomer, which may then be caused to crystallize out from the solution.
摘要:
A novel crystalline material consisting of a enantiomeric pair of cyhalothrin isomers in the form of the racemic mixture and having greater insecticidal activity than cyhalothrin itself is described, together with a process for obtaining the enantiomeric pair of isomers by crystallization from concentrated cyhalothrin solutions in lower alkanols or liquid alkanes.
摘要:
4-Haloalkenyl-2,3,5,6-tetrafluorobenzyl alcohols of formula (III): ##STR1## are intermediates to insecticidally active fluorobenzyl esters of formula (I): ##STR2## wherein X represents the residue of any carboxylic acid of formula X-COOH which forms an insecticidally active ester with a 3-phenoxybenzyl alcohol, and R, R.sup.6 and R.sup.7 are each selected from hydrogen, halogen and alkyl of up to four carbon atoms, provided that at least one of R, R.sup.6 and R.sup.7 represents halogen, and further provided that R and R.sup.6 are not both bromine when R.sup.7 is hydrogen.
摘要:
The invention relates to a method of combating soil-dwelling root worms of the genus Diabrotica which comprises treating the soil in which said root worms dwell with the compound 2-chloro-3, 6-difluorobenzyl (.+-.)-cis-3-(Z-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)- 2,2-dimethylcyclopropane carboxylate.
摘要:
Fluorobenzyl esters of the formula: ##STR1## wherein X represents the residue of any carboxylic acid of formula X-COOH which forms an insecticidally active ester with a 3-phenoxybenzyl alcohol, and R, R.sup.6 and R.sup.7 are each selected from hydrogen, halogen and alkyl of up to four carbon atoms, provided that at least one of R, R.sup.6 and R.sup.7 represents halogen, and further provided that R and R.sup.6 are not both bromine when R.sup.7 is hydrogen. The compounds are useful for combatting insect and acarine pests.
摘要:
Fungicidal compounds having the formula (I): ##STR1## wherein R.sup.1 is an optionally substituted phenyl group, C.sub.3-6 cycloalkyl optionally substituted by alkyl or alkyl; R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are independently hydrogen, C.sub.1-4 alkyl, C.sub.1-4 haloalkyl, C.sub.1-4 alkoxy or N'R"; Z is a linking group and is --C.tbd.C--, --CR.sup.8 .dbd.CR.sup.10 -- or --CR.sup.8 R.sup.9 --CR.sup.10 R.sup.11 --; R.sup.8, R.sup.9, R.sup.10, R.sup.11, R' and R" are independently hydrogen or C.sub.1-4 alkyl; provided that when R is alkyl Z is not --CR.sup.8 R.sup.9 --CR.sup.10 R.sup.11 --; and acid addition salts or metal complexes thereof; and processes for preparing then, compositions comprising them and methods of using them to combat fungi.
摘要翻译:具有式(I)的杀真菌化合物:其中R 1是任选取代的苯基,任选被烷基或烷基取代的C 3-6环烷基; R2,R3,R4,R5,R6和R7独立地是氢,C1-4烷基,C1-4卤代烷基,C1-4烷氧基或N'R“; Z是连接基团,并且是-C 3 D C,-CR 8 = CR 10 - 或-CR 8 R 9 -CR 10 R 11 - ; R8,R9,R10,R11,R'和R“独立地为氢或C1-4烷基; 条件是当R是烷基时,不是-CR8R9-CR10R11-; 和酸加成盐或其金属络合物; 制备方法,包含它们的组合物和使用它们对抗真菌的方法。
摘要:
An interactive electronic classroom system for enabling teachers to teach students concepts and to receive immediate feedback regarding how well the students have learned the concepts. Structure is provided for enabling students to proceed in lockstep or at their own pace through exercises and quizzes, responding electronically to questions asked, the teacher being able to receive the responses, and to interpret a readout, in histogram or other graphic display form, of student responses. In a preferred embodiment, a central computer using an IBM AT (tm) compatible system is employed, together with a plurality of student computers which range from simple devices to full fledged personal computers. Optical peripheral hardware, such as VCRs or other recording/reproducing devices, may be used to provide lessons to students in association with the computer network.
摘要:
A process is described by which the pair of cyhalothrin isomers represented by (R)-.alpha.-cyano-3-phenoxybenzyl (1R,cis)-3-(Z-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylate and its enantiomer is converted by base catalyzed epimerization in solution into the insecticidally more useful isomer pair represented by (S)-.alpha.-cyano-3-phenoxybenzyl (1R,cis)-3-(Z-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylate and its enantiomer, which may be caused to crystallize out from the solution.
摘要:
The invention provides compounds of formula: ##STR1## wherein R.sup.1 represents hydrogen or halogen and R.sup.2 represents C.sub.1-8 alkyl or C.sub.1-8 haloalkyl, useful as insecticides and knockdown agents. The invention also provides compositions comprising them, methods of their use in controlling insects, and processes for their preparation.