Abstract: Novel chemotherapeutic agents having utility in treating infectious diseases such as periodontal disease, certain urinary tract infections, and infectious urinary tract stones, are obtained by combining chemically a diphosphonate compound with a therapeutic agent effective against the foregoing diseases.

Abstract: Novel chemotherapeutic agents having utility in treating infectious diseases such as periodontal disease, certain urinary tract infections, infectious urinary tract stones, and bone cancer, are obtained by combining chemically a diphosphonate compound with a therapeutic agent effective against the foregoing diseases.

Abstract: A liquid catalyst for hydrocarbon conversion reactions and a method for reacting hydrocarbons employing such catalyst is provided by the present invention. The liquid catalyst includes a strong liquid acid such as sulfuric acid or trifluoromethanesulfonic acid and an ion-stabilizing agent such as hexafluoroisopropanol or trifluoroacetic acid. The liquid catalyst has a significantly higher Bronsted acidity than the strong liquid Bronsted acid alone. When the liquid catalyst is used to catalyze the transalkylation of alkylbenzene, for example, the rate of transalkylation is from 2 to 3 times greater than using the strong liquid acid alone.

Abstract: This invention is a method for producing an acidic catalyst product which may be used for hydrocarbon conversion reactions and a method for reacting hydrocarbons employing such catalyst product. The method comprises the step of contacting the perfluorinated polymersulfonic acid with a mixture of the anion-stabilizing agent and its corresponding anhydride, the stabilizing agent being a fluorinated carboxylic acid. The composite catalyst has a significantly higher Bronsted acidity than the perfluorinated polymersulfonic acid. When the catalyst composite is used to catalyze the alkylation of toluene with 1-hexene, for example, the rate of alkylation is from about 20 to 30 times greater than using the perfluorinated polymersulfonic acid alone.

Abstract: This invention provides a catalyst product for hydrocarbon conversion reactions and a method for reacting hydrocarbons employing such catalyst product. The catalyst product is a composite of a perfluorinated polymersulfonic acid and an ion-stabilizing agent such as hexafluoroisopropanol or trifluoroacetic acid. The composite catalyst has a significantly higher Bronsted acidity than the perfluorinated polymersulfonic acid. When the catalyst composite is used to catalyze the alkylation of toluene with 1-hexene, for example, the rate of alkylation is from about 20 to 30 times greater than using the perfluorinated polymersulfonic acid alone.

Abstract: This invention provides a method for isomerizing olefins using a catalyst product which is a composite of a perfluorinated polymersulfonic acid and an anion-stabilizing agent such as hexafluoroisopropanol or trifluoroaetic acid. The composite catalyst has a significantly higher Bronsted acidity than the perfluorinated polymersulfonic acid.

Abstract: This invention provides a catalyst product for hydrocarbon conversion reactions and a method for reacting hydrocarbons employing such catalyst product. The catalyst product is a composite of a perfluorinated polymersulfonic acid and an ion-stabilizing agent such as hexafluoroisopropanol or trifluoroacetic acid. The composite catalyst has a significantly higher Bronsted acidity than the perfluorinated polymersulfonic acid. When the catalyst composite is used to catalyze the alkylation of toluene with 1-hexene, for example, the rate of alkylation is from about 20 to 30 times greater than using the perfluorinated polymersulfonic acid alone.

Abstract: Phenols are etherified to products such as anisole by contacting said phenols with a low molecular weight alcohol or ether in the presence of an acid catalyst comprising a sulfated composite of one or more transition metal oxides on alumina. The process of this invention may be used to etherify, in situ, phenols present in synthetic fuel feedstocks, such as phenols present in naphthas derived from coal liquefaction. Preferred catalysts comprise oxides of tungsten, hafnium, and mixtures thereof on a high surface area gamma alumina support containing at least 2 wt. % sulfate ions.

Abstract: An etherification catalyst comprising a sulfated composite of one or more transition metal oxides on alumina. The catalysts of this invention may be used to etherify phenols. Preferred metal oxides are oxides of tungsten, hafnium, and mixtures thereof.

Abstract: An electrolyte for an alkali metal electrochemical device features (a) an organic solvent; and (b) at least one electrolytically active alkali-metal complex anion salt. The salt has the formula:ZMR.sub.x Q.sub.ywherein Z is an alkali-metal; wherein M is an element selected from a group consisting of B, Al, Ga, In, Tl, P, As, Zn, Cd and Sn (stannous); wherein Q represents at least one heteroatom grouping bonded to M, the core element, through a carbon-M bond; wherein R is selected from a group consisting of: heteroatom-containing groups bonded to M, the core element, through the heteroatom site, alkyls, aryls, alkaryls, aralkyls, halogens, halogen substituted aryls, halogen substituted alkaryls, and pseudohalides; and wherein x and y are positive integers, a sum of x plus y being equal to one plus the valence of the metal M, and further, wherein x can be zero.

Abstract: A current producing Li/TiS.sub.2 electrochemical cell is featured which has a cyclic ether-containing electrolyte, and an inhibitor against the polymerization of the cyclic ether by TiS.sub.2, which cyclic ether otherwise polymerizes in the presence of TiS.sub.2.

Abstract: Anhydrous TaF.sub.5 can be synthesized from a mixture comprising water and fluorotantalic acids by contacting said mixture with a dehydrating agent. Preferably, said mixture is formed by contacting tantalum oxides, tantalum oxide-halides or mixtures thereof with HF. The dehydrating agent should be a compound that contains carbon-chlorine bonds, carbon-bromine bonds or mixtures thereof.