摘要:
Formamidine sulphides and disulphides endowed with herbicide activity are disclosed.The processes for their preparation, their use as herbicides and herbicidal compositions thereof are disclosed too.
摘要:
Phenylcarbamoylbenzimidates of the formula ##STR1## wherein X.sub.1 is selected from the group consisting of methyl, trifluoromethyl, chlorine, fluorine and bromine; X.sub.2 is selected from the group consisting of hydrogen, methyl, trifluoromethyl, chlorine, fluorine and bromine; R is alkyl of from 1 to 5 carbon atoms; X.sub.3 and X.sub.4 can be the same or different and are selected from the group consisting of hydrogen, chlorine and bromine; X.sub.5 is selected from the group consisting of hydrogen, chlorine, bromine and trifluoromethyl; and X.sub.6 is selected from the group consisting of cyano and nitro; with the proviso that when X.sub.1 and X.sub.2 are chlorine or when X.sub.1 is fluorine and X.sub.2 is hydrogen then R, X.sub.3, X.sub.4, X.sub.5 and X.sub.6 are respectively not 1-methylethyl, chlorine, hydrogen, chlorine and nitro; with the further proviso that when X.sub.1 is fluorine and X.sub.2 is hydrogen then R, X.sub.3, X.sub.4, X.sub.5 and X.sub.6 are respectively not 1-methylethyl, chlorine, hydrogen, hydrogen and nitro; and with the further proviso that when X.sub. 1 is florine or methyl and X.sub.2 is hydrogen then R, X.sub.3, X.sub.4, X.sub.5 and X.sub.6 are respectively not ethyl, hydrogen, hydrogen, hydrogen and nitro; and with the proviso that when X.sub.1 and X.sub.2 are florine, then R, X.sub.3, X.sub.4, X.sub.5 and X.sub.6 are respectively not ethyl, chlorine, hydrogen, chlorine and nitro.
摘要翻译:其中X 1选自甲基,三氟甲基,氯,氟和溴的下式的苯基氨基甲酰基苯甲亚胺: X 2选自氢,甲基,三氟甲基,氯,氟和溴; R是1至5个碳原子的烷基; X3和X4可以相同或不同,并且选自氢,氯和溴; X5选自氢,氯,溴和三氟甲基; X 6选自氰基和硝基; 条件是当X1和X2为氯时,或当X1为氟且X2为氢时,则R,X3,X4,X5和X6分别不为1-甲基乙基,氯,氢,氯和硝基; 进一步的条件是当X1是氟并且X2是氢时,则R,X3,X4,X5和X6分别不是1-甲基乙基,氯,氢,氢和硝基; 并且进一步的条件是当X 1为氟或甲基且X 2为氢时,则R,X 3,X 4,X 5和X 6分别不是乙基,氢,氢,氢和硝基; 并且条件是当X1和X2是氟,则R,X3,X4,X5和X6分别不是乙基,氯,氢,氯和硝基。
摘要:
In the preparation of perchloro-2,5-diaza-1,5-hexadiene by chlorination of N,N-dimethylaminoacetonitrile, the improvement which comprises in a first stage (a) chlorinating N,N-dimethylaminoacetonitrile or its hydrochloride at about 70.degree. to 80.degree. C. in a solvent, removing the solvent by distillation under chlorinating conditions until a bottom temperature of about 120.degree. to 160.degree. is reached, and after-treating the residual reaction at this temperature with chlorine, and in a second stage (b) chlorinating the resulting reaction mixture at a temperature from about 150.degree. to 220.degree. C. Advantageously the solvent in stage (a) is phosphorus oxychloride, the weight ratio of nitrile to solvent is about 1:3, the after-chlorination in stage (a) is carried out at a temperature from about 120.degree. to 140.degree. C., and stage (b) is carried out at a temperature from about 180.degree. to 210.degree. C. in a multi-stage bubble column cascade reactor operated with gas and liquid in counter-current.
摘要:
Compounds having the following structural formula ##STR1## wherein R is hydrogen or alkyl and R.sup.1 is hydrogen or alkyl which are useful as post-emergent herbicides.
摘要:
Substituted cyanamidic compounds as exemplified by N-(diphenylmethylidene)cyanamide may be prepared by reacting nitrogen-containing compounds having the formula: ##STR1## in which R.sub.1 and R.sub.2 are selected from the group consisting of hydrogen, aryl, alkyl possessing from 1 to about 30 carbon atoms, cycloalkyl possessing from about 5 to about 12 carbon atoms in the ring, alkyl-substituted cycloalkyl, aryl-substituted cycloalkyl, alkaryl and aralkyl radicals and R.sub.3 is selected from the group consisting of hydrogen, alkyl possessing from 1 to about 30 carbon atoms, aryl, cycloalkyl possessing from 5 to about 12 carbon atoms in the ring, alkyl-substituted cycloalkyl, aryl-substituted cycloalkyl and bicycloalkyl radicals with cyanamide and a compound selected from the group consisting of an acid-acting compound, an alkyl halide and an alkyl sulfate.
摘要:
Alpha-monoalkenes are addition polymerized by using an acyl halide (e.g., acetyl chloride) -- Friedel Crafts catalyst complex and a monochloroalkane solvent (e.g., ethyl chloride); the acyl halide reacts in situ with the monomer to yield a polymeric ketone. The polymeric ketone is subsequently reacted with an aliphatic polyamine (e.g., tetraethylenepentamine) to yield a condensation product which is useful as a lube oil detergent.
摘要:
The compounds are hydroxamic acids of alicyclic amino acids, and esters of said compounds, all of which have valuable pharmacodynamic properties in that they suppress the immune response in warm-blooded animals.
摘要:
Biscarbodiimides which are known to be effective as a surface application for polyethylene terephthalate fibers in lowering carboxyl end group concentration of the fibers and increasing hydrolytic stability, are prepared by the dehydration of ureas with triphenylphosphine and carbon tetrachloride.
摘要:
.alpha.-Halogen-nitrones of the formula ##EQU1## wherein Hal is a bromine or preferably a chlorine atom, R.sub.1 represents a cycloalkyl or an alkyl radical and R.sub.2 is hydrogen or an organic radical.Use as intermediates especially for the substitution of a hydrogen atom in aromatic compounds by the radical ##EQU2##