摘要:
.alpha.-Oxothiodimethylamide compounds such as tert.-butyl-glyoxyl acid thiodimethylamide are prepared by reacting an .alpha.-chloroketone of the formula ##STR1## in which X is hydrogen or chlorine andR.sup.1 is alkyl or arylWith sulfur and dimethylamine in water at a temperature between 50.degree. and 90.degree. to produce the corresponding .alpha.-oxothiodimethylamide of the formula ##STR2## wherein R.sup.1 is identified above.
摘要:
Method of making 4-amino-6-t-butyl-3-mercapto-1,2,4-triazin-5-one comprising halogenating a 3,3-dimethylbutyric acid with Br.sub.2 or Cl.sub.2 to produce a 2,2-dihalo-3,3-dimethylbutyric acid then reacting the latter with thiocarbohydrazide. Alternatively, a 3,3-dimethylbutyryl chloride can be used as starting material, in which case the halogenation product is contacted with water, an aqueous base, an alcohol, a mercaptan, or an amine to convert it to an acid or salt thereof, anhydride, ester, thioester or amide, and the latter is reacted with thiocarbohydrazide.
摘要:
Novel N-(phenyl)-1,4,5,6-tetrahydro-1,2,4-triazine-3-methanamines are disclosed which are useful as herbicides, insecticides, and antimicrobial agents. Various member compounds are also pharmacologically active.
摘要:
3-Chloro-5,6-diaryl-1,2,4-triazines, topically active anti-inflammatory agents, having the formula ##SPC1##Wherein R.sub.2 and R.sub.3 independently are halo, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, or di(C.sub.1 -C.sub.3 alkyl)amino; and the pharmaceutically-acceptable acid addition salts of basic members thereof.
摘要:
Glyoxylic acid semicarbazone is cyclized by reacting it with a base such as sodium hydroxide at a temperature from 100* to 180*C in the presence of a high boiling alcohol solvent.
摘要:
Herbicidal compositions in the form of synergistic combinations of either 3-methylmercapto-4-amino-6-isopropyl-1,2,4-triazin-5one or 3-methylmercapto-4-amino-6-tert.-butyl-1,2,4-triazin-5-one with either or both of N''-(3,4-dichlorophenyl)-N,N-dimethyl-urea and 3-amino-1,2,4-triazole, which are individually known compounds, which combinations possess synergistic herbicidal properties especially for the control of weeds.
摘要:
A process for making 2-aryl-1,2,4-triazine-3,5(2H,4H)-diones which comprises (a) coupling a diazotized arylamine with a lower alkyl cyanoacetate: (b) hydrolyzing and decarboxylating the lower alkyl cyanoglyoxalate arylhydrazone thus produced under alkaline conditions; and (c) cyclizing the resulting glyoxamide arylhydrazone by reaction with a dialkyl carbonate, an alkyl chloroformate or phosgene in the presence of a condensing agent to the corresponding 2-aryl-1,2,4-triazine-3,5(2H,4H)-dione. The products are useful as coccidiostats.
摘要:
A process for the preparation of 2-aryl-as-triazine-3,5-(2H,4H)diones via cyclodehydration of glyoxylic acid 2arylsemicarbazones, said products being useful for controlling coccidiosis in poultry.