Abstract: Compounds corresponding to the formula ##STR1## wherein R.sup.1 and R.sup.2 represent H or C.sub.1 -C.sub.4 -alkyl,R.sup.3 represents H or CH.sub.3,R.sup.4 represents C.sub.7 -C.sub.20 -aralkyl,n represents 1 or 2, andm represents an integer of from 1 to 12,are suitable as ageing protecting agents for polymers and in particular for rubbers which are non-extractable in this form and may be added to polymers.

Abstract: The antibiotic 7273 complex is elaborated by the microorganism, Dactylosporangium vescum ATCC 39499. The novel 7-chloro-4a-hydroxy-8-methoxytetracycline isolated from antibiotic 7273 complex is active against gram-positive and gram-negative aerobes.

Abstract: Substituted .alpha.-[2'-tricyclo[3.3.1.1.sup.3,7 ]decylidene]-benzenacetamide derivatives of the formula: ##STR1## where the R.sup.1, R.sup.2 and R.sup.3 substitutents are independently selected from hydrogen, lower alkyl, lower alkoxy, halogen and trifluoromethyl, provided that at least one of such substitutents is hydrogen, have antihypoxia, antiparkinson, and/or anticonvulsant activities.

Abstract: Azo compounds of the formula I ##STR1## wherein X is --H, --CH.sub.3, --CF.sub.3, --NO.sub.2, --COOR.sub.1, --NHCOR.sub.2 or --COHN.sub.2, and R.sub.1 and R.sub.2 are as defined in claim 1, are suitable for pigmenting high-molecular organic material.

Abstract: Intermediates of the formula ##STR1## are disclosed. These compounds are useful in preparing substituted peptide compounds which possess hypotensive and analgesic activity.

Abstract: Disclosed is a compound of the formula: ##STR1## wherein X.sub.1 and X.sub.3 represent chloro or fluoro, X.sub.2 represents hydrogen, chloro or fluoro, X.sub.4 represents hydrogen or halogen, X.sub.5 represents --CF.sub.3 or --OCF.sub.3, Y represents oxygen or sulfur and an insecticidal composition containing said compound, a method for killing insect pests and a process for producing said compound and its use as pesticide.

Abstract: A guanidinomethylbenzoic acid derivative represented by the formula ##STR1## or a salt thereof. An antiulcer agent comprising the compounds of the afore-said formula as an effective ingredient is also disclosed.

Abstract: The present invention relates to a novel process for the preparation of an .alpha.,.alpha.-difluoroalkyl phenyl ether of formula I ##STR1## wherein R.sup.1 is hydrogen, halogen, amino, nitro, --SO.sub.2 --R.sup.4, --S--R.sup.5, --SO--R.sup.6 or --S--S--R.sup.7,R.sup.2 is hydrogen, halogen, nitro, hydroxy or --SO.sub.2 --R.sup.8,R.sup.3 is C.sub.1 -C.sub.5 haloalkyl,X is oxygen, sulfur, --SO-- or --SO.sub.2 --,R.sup.4 is hydroxy, halogen, amino, --N.dbd.C.dbd.O, --NH--CO--Cl, --NH--CO--Br, --NR.sup.9 R.sup.10, benzyl, phenyl, C.sub.1 -C.sub.4 alkyl or --NH'CO--NR.sup.11 R.sup.12,R.sup.5 and R.sup.6 are C.sub.1 -C.sub.4 alkyl, phenyl or benzyl,R.sup.7 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl,R.sup.8 is hydroxy or halogen,R.sup.9 and R.sup.10 are each independently of the other C.sub.1 -C.sub.4 alkyl or benzyl andR.sup.11 and R.sup.12 are each independently of the other hydrogen, C.sub.1 -C.sub.

Abstract: o,o'-Dithiodibenzamides of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl or phenyl, R.sup.3 is hydrogen, halogen, nitro, methyl or methoxy, and R.sup.4 has the same meanings as R.sup.3, are prepared by nitrosating an anthranilamide of the formula ##STR2## and reacting the product with sulfur dioxide in the presence of copper or a copper salt.

Abstract: To produce thiosemicarbazide hydrazine is reacted with hydrogen cyanide and sulfur to form hydrazine thiocyanate, and this is then converted into the thiosemicarbazide at an elevated temperature. Advantageously, the reaction is carried out in a polar solvent.

Abstract: A compound having the formula ##STR1## wherein R.sub.1 represents halogen or methyl;R.sub.2 represents hydrogen or halogen;each of R.sub.3 and R.sub.4 represents halogen; andeach of X and Y represents oxygen or sulfur.The compound is useful as insecticide.

Abstract: Novel fungicidally active N-benzyl-cyclopropanecarboxamides of the formula ##STR1## wherein X represents halogen,n represents 1 or 2,R.sup.1 represents hydrogen, halogen or lower alkyl,R.sup.2 represents lower alkyl, halogen-substituted lower alkyl or hydrogen, andR.sup.3 represents hydrogen or lower alkyl.The acid components thereof, other than when R.sup.1 is hydrogen or alkyl and R.sup.2 is hydrogen or alkyl, are also new.

Abstract: Salicylamide derivatives of the formula ##STR1## in which X is a halogen atom, are active against fungi, especially those which result in clubroot of cruciferous plants.

Abstract: A reactive monoazo dyestuff of the general formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 each represents substituted or unsubstituted alkyl, cyclohexyl, aralkyl or substituted or unsubstituted aryl, Z represents hydrogen, chlorine, methyl or acylamino, (A) represents substituted or unsubstituted alkylene, (B) represents oxygen or --NH--, X represents fluorine or chlorine, and Y represents --NR.sup.4 R.sup.5 or --OR.sup.6 wherein R.sup.4, R.sup.5 and R.sup.6 each represents hydrogen, substituted or unsubstituted alkyl, alkenyl, cyclohexyl, aryl or aralkyl, or --NR.sup.4 R.sup.5 represents a 5- or 6-membered nitrogen-containing heterocyclic ring formed by combining R.sup.4 and R.sup.5.

Abstract: A method for purifying an aqueous acrylamide solution by using activated carbon is disclosed. The method comprises contacting activated carbon with water having oxygen dissolved therein until the dissolved oxygen concentration in water after the contact increases to at least 0.5 ppm, and then contacting the aqueous acrylamide solution with the thus treated activated carbon. The method can prevent polymerization of acrylamide around activated carbon, and the resulting purified aqueous acrylamide solution requires no further purification, such as ion-exchanging.

Abstract: The biuret content of biuret-containing urea is reduced by contacting a solution or melt of biuret-containing urea with a polar adsorbent under conditions sufficient to remove at least a portion of biuret from the urea. The resulting biuret-containing adsorbent can be regenerated for further use by contact with a polar desorbent under conditions sufficient to desorb at least a portion of the biuret contained on the adsorbent. Optionally, biuret can be recovered by recovering the biuret-containing desorbent, and biuret concentration in the desorbent can be increased by recycling the biuret-containing desorbent into contact with biuret-containing adsorbents, and biuret can be recovered from the desorbent by low temperature crystallization.

Abstract: Purified biuret is recovered from mixtures containing biuret and higher molecular weight urea condensation products by contacting melts or solutions of such mixtures with a polar adsorbent and extracting biuret from the adsorbent with a polar desorbent. The useful biuret-containing mixtures also may contain urea. These methods are capable of recovering biuret of 99.9 percent plus purity from mixture containing higher molecular weight urea condensations products such as triuret, melamine, ammelide, and others. The biuret-containing desorbent can be recycled into contact with biuret-containing adsorbents to increase its biuret concentration, concentrated by evaporation of otherwise, and/or treated to crystallize biuret. An integrated process is provided which involves pyrolyzing urea to form biuret and higher molecular weight condensation products and selectively recovering biuret from the resulting pyrolyzed urea as described.

Abstract: .beta.-Aminoethyl ketones are obtained in a low-polluting manner by Mannich condensation of an aryl ketone having an acidic H with an aldehyde and ammonia or an amine by carrying out the reaction in organic nitriles in the presence of a sulphonic acid or in gycol either in the presence of a sulphonic acid or sulphuric acid.

Abstract: Disclosed herein are N-(2-chloro-4-trifluoromethylphenyl)-3-trifluoromethylbenzensulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom, and agricultural fungicides containing said derivatives.

Abstract: Cyclohexenone derivatives of the formula ##STR1## where R.sup.1 is hydrogen, methoxycarbonyl, ethoxycarbonyl, methyl or cyano, R.sup.2 is alkyl, R.sup.3 is alkyl, alkenyl, haloalkenyl, or propargyl, R.sup.4 is hydrogen or alkyl, R.sup.5 is hydrogen, alkyl, acyl, formyl, cycloalkylcarbonyl, methoxyalkylcarbonyl, unsubstituted or substituted benzoyl, alkoxycarbonyl, benzyloxycarbonyl, phenoxycarbonyl, alkylthiocarbonyl, N,N-dialkylcarbamyl, N-alkylcarbamyl, N-cycloalkylcarbamyl, N-alkoxy-N-alkylcarbamyl, unsubstituted or substituted N-phenylcarbamyl, alkylsulfonyl, alkenylsulfonyl, haloalkylsulfonyl, N-alkylsulfamyl, N,N-dialkylsulfamyl, N-acyl-N-alkylsulfamyl, N-alkyl-N-methoxycarbonylsulfamyl, dialkoxyphosphoryl, dialkoxythiophosphoryl, 2-haloalkanoyl, acyloxyacetyl or alkoxyoxalyl, and R.sup.6 is alkyl, halogen, hydroxyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkylsulfinyl, alkylsulfonyl, nitro or amino, and salts of these compounds, and the use of these compounds for controlling unwanted plant growth.