摘要:
Sunscreen compositions are described which contain certain cyclohexenylidenyl which act as UV filters when incorporated in a carrier in amounts ranging from 0.1-50% by weight.
摘要:
A process for the preparation of a phosphorus complex corresponding to the following general formula: wherein R represents optionally substituted aryl, wherein the substitution may comprise at least one selected from nitro, chloro, fluoro, alkyl, fluoro-alkyl and alkoxy, or optionally substituted alkyl; characterised in that it comprises reacting phosphorus pentachloride and a phosphonic dichloride corresponding to the following general formula: RPOCl₂ wherein R is as defined above; in the presence of an inert solvent boiling at a temperature of from 120 to 150°C, which is capable of co-distilling a phosphorus oxychloride reaction product, and co-distilling a phosphorus oxychloride reaction product, the molar ratio of phosphorus pentachloride:phosphonic dichloride being from 0.1:1 to 10:1 is disclosed. There is further disclosed a process for chlorinating compounds containing a carbon atom bonded to a hetero-atom selected from oxygen, nitrogen and sulfur which comprises contacting the carbon hetero-atom containing compound with a chloro phosphorus complex corresponding to the following general formula: wherein R represents optionally substituted aryl or optionally substituted alkyl, so that the hetero-atom is replaced by at least one chlorine atom; the reaction may be extended to compounds containing the carbon to chlorine bond alpha to a carbon atom having at least one hydrogen atom, it may be further dehydrochlorinated by either heating to a temperature of from 50 to 300°C or by reaction with a selected base.
摘要:
Certain amine containing phenolic pyrazines of formula III possess eukalemic diuretic properties and are of value in treating diseases and conditions in which a eukalemic diuretic effect is required, for example in treating edema, hypertension and/or related conditions.
摘要:
Polymers having substituted urea groups, and molded objects therefrom, can be made by reacting, in a reaction injection molding (RIM) process, a composition comprising (A) a polyisocyanate and (B) a mixture comprising an imino functional resin and a chain extender. The chain extender may also be imino functional.
摘要:
This invention comprises novel carbocyclic compounds of formula I (wherein A, Z, R¹¹ and R¹² are defined in the specification) derived from acylsulfonamide derivatives of α-carbocyclyltoluic acids wherein said compounds of formula I antagonize the actions of one or more of the arachidonic acid metabolites known as leukotrienes. The invention also provides pharmaceutically acceptable salts of the formula I compounds; pharmaceutical compositions containing the formula I compound, or their salts, for use in the treatment of, for example, allergic or inflammatory diseases, or endotoxic or traumatic shock conditions; and processes for the manufacture of the formula I compounds, as well as intermediates for use in such manufacture.
摘要:
A non-crystalline 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane having an amorphous X-ray diffraction pattern and a melt transition temperature of 113-119°C is made by an improved process and offers improvements over crystalline materials as a stabiliser of polymeric materials such as polypropylene.
摘要:
Novel fungicidal pyridyl cyclopropane carboxamidines having the general structural formula and tautomers thereof wherein R is selected from the group consisting of hydrogen, pyridyl, substituted pyridyl, C₁-C₃ alkoxy, C₁-C₆ alkyl, acyl, carbamoyl, sulfonyl and cyano; R₁ is selected from the group consisting of halogen, C₁-C₃ alkoxy and C₁-C₃ alkenyloxy; R₂ is selected from the group consisting of hydrogen and C₁-C₃ alkyl; R₃ is selected from the group consisting of hydrogen, alkyl, aryl or arylalkyl; and fungicidally acceptable organic and inorganic salts thereof.
摘要:
A polyisocyanate composition, suitable for use in the production of elastomers by the RIM process, said composition being the product of reacting an alcohol and/or thiol having an average hydroxyl and/or thiol functionality of from about 1.5 to about 4 and an average hydroxyl and/or thiol equivalent weight of at least 500 with at least 2 equivalents, per hydroxyl and/or thiol equivalent, of an organic polyisocyanate under such conditions that at least about 20 % of the initially formed urethane and/or thiourethane groups are converted to allophanate and/or thioallophanate groups.
摘要:
A composition for external use contains at least one active ingredient and a capped ethoxylated alcohol of the formula RO(EO) x R¹ where R and R¹ are both hydrocarbon or substituted hydrocarbon and x is at least two. R is preferably a higher alkyl group and R¹ is a lower alkyl group. x is preferably at least 4. The ethoxylated alcohol is typically used in an amount to provide a soothing effect. The ethoxylated alcohol may be incorporated into cosmetic or pharmaceutical compositions such as shaving cream, pre-and after-shave lotions, sunburn lotions, lotions and creams for chapped lips etc., insect bite lotions etc., mouth wash, and anti-perspirant.