Abstract: Azobenzenesulfonamides such as 2-[4-(dimethylamino)phenylazo]-N-[(4-methoxy-6-methylpyrimidin-2-yl)aminoc arbonyl]benzenesulfonamide are useful as preemergent and postemergent herbicides.

Abstract: Yellow dyes from substituted 2-aminothiophene and acyclic active methylene coupling components are of particular interest for dyeing polyester fibers. The dyes have the formula: ##STR1## wherein: X is a group such as alkyl, allyloxy, alkoxy, aryl or the like; Y is hydrogen, alkyl, or aryl; Z is alkyl, aryl, alkylsulfonyl, cyano or COX where X is defined above; R is cyano, carbamyl, alkanoyl, aroyl, or the like; R.sub.1 is selected from the R groups and ##STR2## wherein R.sub.2 represents the atoms necessary to complete an azole radial selected from benzothiazole, benzimidazole, benzoxazole, 1,3,4-oxadiazole, 1,3,4-thiadiazole, and pyrazole; and wherein the hydrocarbon moieties of each of the above radicals or groups may be substituted with up to three of --OH, alkoxy, hydroxyalkoxy, alkylcarbamyl, or the like.

Abstract: Thiophen-2-ylazopyrazole dyes useful for dyeing polyesters, cellulose acetate esters, and polyamides in fast yellow shades have the general formula: ##STR1## wherein: X is alkyl, allyloxy, alkoxy, aryl, aryloxy, amino, alkylamino, arylamino, cyclohexyloxy,, thienyl, cycloalkylamino, N,N-dialkylamino, or N-alkyl-N-arylamino; Y is hydrogen, alkyl, or aryl; Z is alkyl, aryl, alkylsulfonyl, 2-benzothiazolyl, cyano or COX; R and R.sub.1 are alkyl or aryl; R.sub.2 is hydrogen, alkyl, aryl, acyl, benzothiazolyl, pyridyl, sulfolanyl, quinolyl, thiocarbamyl, carbamyl, alkoxycarbonyl, aroyl, aryl-carbamyl and alkanoyl; and wherein the hydrocarbon moieties of the above radicals may be substituted with up to three of --OH, alkoxy, hydroxyalkoxy, carbamyl, and similar groups conventionally used in the azo dye art.

Abstract: Certain aphicidal 3-(2-alkyl-2,3-dihydrobenzofuran-7-yl)-5-(R,R.sup.1 -amino)-1,3,4-oxadiazol-2(3H)-ones.

Abstract: A novel synthon useful in the conversion of penicillin is a compound of the formula ##STR1## wherein R.sub.3 is a number of the group consisting of trimethyl-silyl, t-butyl dimethyl silyl, trimethyl silyl, methyl, benzyl or nitrobenzyl, and R.sub.5 is the same or different member of the group R.sub.3 is prepared by the naphthalene sulfonyl azide exchange reaction with benzyl acetoacetate, p-nitrobenzylacetoacetate, or methylacetoacetate to obtain the corresponding 2-diazo compound which is then silylated in hexamethyl-disalazine.

Abstract: A lithographic resist for use with deep ultra-violet radiation comprising an acidic resin and a diazohomotetramic acid sensitizer.

Abstract: A process for the preparation of a compound of the formulae (Ia) and/or (Ib): ##STR1## wherein R.sup.1 and R.sup.2 are independently substituted or unsubstituted hydrocarbon groups or are joined together so as to form a carbocyclic or heterocyclic ring, and R.sup.3 is a substituted or unsubstituted hydrocarbon group; which process comprises the ring-closing cyclization of a compound of the formula (II): ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in relation to formulae (Ia) and (Ib).

Abstract: The invention relates to a process for the preparation of aryldiazosulfonates by reacting aqueous solutions of aryldiazonium salts with solutions or suspensions of sulfites, in particular in a manner such that the presence of an excess of one of the two reactants during the reaction is substantially excluded. The process according to the invention makes it possible substantially to increase the yields of aryldiazosulfonates.

Abstract: An electrophotographic photosensitive member comprises a layer containing at least one disazo pigment represented by the formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent hydrogen, halogen, lower alkyl or lower alkoxy; R.sub.3 represents methyl, ehtyl or C.sub.3 -C.sub.10 linear alkyl; and X represents a residue necessary to complete an aromatic hydrocarbon ring or heterocyclic ring, substituted or unsubstituted.