Abstract: The nucleophilic substitution upon unactivated monocyclic or polycyclic aromatic or heteroaromatic substrates bearing suitable leaving groups can be achieved by catalyzing the substitution of said leaving groups by an anionic nucleophile with a cyclic or acyclic polydentate chelating ligand. Specific products of this reaction can be used in preparing sulfonylurea herbicides.

Abstract: Metallic impurities are removed from liquid organosulfonyl halides by passing the contaminated material through a bed of activated carbon, preferably activated carbon containing adsorbed water.

Abstract: A compound having the formula ##STR1## where Ar=naphthyl, biphenyl, or quinolinyl;X=oxygen or NH;Y=2 to 8;R.sub.1 =phenyl, substituted phenyl, hydrogen, lower alkyl; andR.sub.2 is the same or different from R.sub.3 and is alkyl, cycloalkyl, phenyl, substituted phenyl, thiazolyl; andthe pharmaceutically acceptable salts thereof.Compounds of this general formula are useful as anti-inflammatories, and as anti-psoriatic agents.

Abstract: The invention relates to halogenobenzophenone-oxime derivatives of the general formula ##STR1## wherein R is C.sub.3 -C.sub.8 alkyl with a branched hydrocarbon chain, and Ar is a halogenophenyl group of the formula ##STR2## in which R.sub.1 is F, Cl or Br, and R.sub.2 and R.sub.3, identical or different, represent each H, F, Cl or Br.The derivatives of formula I are useful as antibacterial agents.

Abstract: There is disclosed a process for the production of arylsulfonyl halides, e.g., benzenesulfonyl chloride. The disclosed process adds a phosphorus-containing additive, e.g., phosphorous acid, before the reaction of an arylsulfonic acid with a sulfur halide and a halogen. The phosphorus-containing additive reduces the thermal instability of the residue remaining after distillation of the arylsulfonyl halide.

Abstract: Alkyl esters of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids are prepared by esterifying the monocarboxylic acid with an alcohol of 6 to 20 carbon atoms in the presence of from 0.1 to 5% by weight, based on the reaction mixture, of a strong acid and in the presence of a polymerization inhibitor and an oxygen-containing gas, at from 80.degree. to 150.degree. C., by a process in which the molar ratio of the monocarboxylic acid to the alcohol is from 1:0.8 to 1:1.2, and the water of reaction is separated off from the reaction mixture while passing an inert gas containing from 1 to 20% by volume of oxygen through the reaction mixture.

Abstract: A compound represented by the formula ##STR1## wherein R.sup.1 represents a hydroxyl group, an alkanoyloxy group or a group of the formula ##STR2## in which R.sup.2 represents a hydrogen atom or a lower alkyl group, and R.sup.3 represents a hydrogen atom, a lower alkyl group, an alkanoyl group, a phenyl group, a carbamoyl group or a thiocarbamoyl group, or a salt thereof.The said compound can be prepared by reacting a compound represented by the formula ##STR3## with a compound of the formulaNH.sub.2 --R.sup.1 (III)wherein R.sup.1 is as defined hereinabove, or a salt thereof, and as required, alkanoylating the resulting compound of formula (I) in which R.sup.1 represents a hydroxyl group or an amino group, and as required, converting the resulting compound of formula (I) in which R.sup.1 is the group ##STR4## into its salt, and is useful for the treatment of inflammation, pain or rheumatism.

Abstract: A method for preparing an ester of (meth)acrylic acid with a polyhydric alcohol comprising, transesterifying a (meth)acrylic acid ester derived from an alcohol of 1-4 carbon atoms with a transesterifying polyhydric alcohol in the presence of at least one metal compound catalyst system, said catalyst system being comprised of compounds A or a combination of compounds A+B, wherein A represents at least one compound of the formula: Li.sub.n Y, wherein Y is halide, chlorate, carbonate, carboxylate of 1 to 6 carbon atoms, an alkoxide of 1 to 4 carbon atom, hydroxide or oxide and n is 1 or 2, and wherein B is the compound: CaX.sub.q, wherein X is oxide or chloride, and q is 1 or 2; with the provision that at least one of the two anionic components Y and X is oxygen-containing.

Abstract: A bisbiguanide compound of the formula:R.sup.1 R.sup.2 N.C(:NR.sup.6)NH.C(:NH)NH.CH.sub.2 X-- --(CH.sub.2).sub.3 NH.C(:NH)NH.C(:NR.sup.7)NR.sup.3 R.sup.4 Vor a tautomer thereof, wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 which may be the same or different, are each hydrogen, a 1-16C alkyl radical, a 2-16C alkoxyalkyl radical, a 3-12C cycloalkyl radical, a (3-12C cycloalkyl)-(1-4C alkyl) radical, or an optionally substituted phenyl or phenyl(1-4C alkyl) radical, or R.sup.1 and R.sup.2 and the nitrogen atom to which they are attached, or R.sup.3 and R.sup.4 and the nitrogen atom to which they are attached, which may be the same or different, are each a 1-azetidinyl, 1-pyrrolidinyl, piperidino, hexamethyleneimino, heptamethyleneimino, morpholino or 4-(1-8C alkanoyl)-1-piperazinyl radical each of which may bear 1-3C alkyl substituents; each of R.sup.6 and R.sup.7, which may be the same or different, is hydrogen or a 1-8C alkyl radical; and X is a substituted ethylene or ethylidene radical of the formula:--CH.

Abstract: In the process for the preparation of methyl methacrylate, the addition of aromatic diamine in an acidic environment reduces yellow color in the polymerized product.

Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: X is selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;m is an integer chosen from 3 to 5.

Abstract: New polysubstituted derivatives of naphtalene.These derivatives correspond to the following formula: ##STR1## in which: R.sub.1 to R.sub.4 is H or CH.sub.3R.sub.5 is ##STR2## or (iv) the radical: 2-oxazolinyl m is 0 or 1R.sub.8 is H, alkyl, OR.sub.11, R.sub.11 being H, alkyl or ##STR3## R.sub.13 being alkyl or aryl or R.sub.8 is ##STR4## when m=1, r' and r" representing H, alkyl mono or polyhydroxyalkyl, aryl or a heterocycle when they are taken together, R.sub.9 is H or alkyl, R.sub.10 is H, alkyl and the acetals of the said compounds, ##STR5## --OR.sub.14, R.sub.14 being H, alkyl, mono or polyhydroxyalkyl, aryl or aralkyl a rest of a sugar or represents ##STR6## P being 0, 1, 2, or 3 R.sub.6 represents a hydrogen atom or a lower alkyl radical,R.sub.7 represents H, alkyl, halogen, hydroxyl, sulfydryl, alkoxy, alkylthio, acyloxy, acylthio, acylamino or primary, secondary or tertiary amino and the salts of the said compounds.These compounds find an application in the cosmetic and pharmaceutical fields.

Abstract: Compounds having the formula (I) wherein R.sub.1 and R.sub.2 are a hydrogen atom, an alkyl group or a hydroxy group, or else R.sub.1 and R.sub.2 form together a bivalent ethylene or trimethylene radical; R.sub.3 is a halogen atom, an alkyl group, an alkoxy group, a mono- or polyhydroxylated alkyl group, an amino group, a mono- or di-alkyl amino group, an acetamido or sulfonamido group; R.sub.1 is a hydroxy group, a mono- or polyhydroxylated alkyl group, an amino group, a mono- or dialkyl amino group, an acetamido or sulfonamido group; R.sub.4 being in the position 3, 4 or 5 and A is a bridge having from 1 to 3 links selected among the groups having the formula (II), --NH--,--N.dbd.--O-- and --S--. R.sub.5 represents an hydrogen atom, an alkyl group, a hydroxy group or an alkoxy group as well as the addition salts thereof with pharmaceutically acceptable acids. Said compound may be used in therapeutical treatment as antihypertensive agents, particularly in the ocular field.

Abstract: Polymeric phosphonate anhydrides are formed by dehydrating a reaction mixture comprising a salt of a diphosphonic acid. The invention includes the polymeric phosphonate, its method of preparation, and a primary use.

Abstract: Certain novel aryl sulfonyl fluorides, their preparation, and their use in inhibiting serine proteases with chymotrypsin-like and elastase-like specificity.

Abstract: Aromatic monomers, each containing at least one o-ethynyl carboxylic acid halide subunit: ##STR1## wherein X is Cl or Br. These monomers can be reacted with amines to form aromatic polyamide resins which can be thermally treated to undergo intromolecular cyclization, without evolution of volatiles, into polyimidines.

Abstract: Ethylenically unsaturated monomers containing activated ester groups are used to make polymers and copolymers which are useful in coatings, adhesives and moldings.

Abstract: Novel 2-adamantanone oxime carbamate derivatives, including tricyclo[3.3.1.1.sup.3,7 ]decan-2-one O-[(cyclohexyl) aminocarbonyl]oxime, tricyclo[3.3.1.1.sup.3,7 ]decan-2-one O-[3-methoxy)aminocarbonyl] oxime, and tricyclo[3.3.1.1.sup.3,7)decan-2-one O-[(2-chlorophenyl)aminocarbonyl]oxime; useful as antifungal agents against E. floccosum.

Abstract: Carboxylic acid anhydrides are freed from small amounts of halogen and halide moieties by treatment with a phenyl or an alkyl phosphine.

Abstract: The invention is insecticidal diaminoguanidine hydrazone compounds which are also effective antifeeding agents for insects and methods for their preparation.