CAS: 149-44-0; Sodium Hydroxymethanesulphinate

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870-72-4 20277-69-4 1345961-23-0

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专利信息

专利号:US-4336383-A
优先权日:1980-05-07
标题:1-1-Binaphthyl-4,4',5,5',8,8'-hexacarboxylic acid compounds, method of preparation and use thereof for the synthesis of asymmetric derivatives of 3,4,9,10-perylenetetracarboxylic acid, and for dyeing and printing of textile materials
发明人：VOROZHTSOV GEORGY N; MASANOVA NATALIA N; FELDBLJUM NIKOLAI B; ALEXEEV VASILY I; SHIGALEVSKY VADIM A; SOLOMATIN GEORGY G; SHULEPOVA OLGA I; KHAITUN GALINA G; GORDEEVA NADEZHDA V
权利人:VOROZHTSOV GEORGY N; MASANOVA NATALIA N; FELDBLJUM NIKOLAI B; ALEXEEV VASILY I; SHIGALEVSKY VADIM A; SOLOMATIN GEORGY G; SHULEPOVA OLGA I; KHAITUN GALINA G; GORDEEVA NADEZHDA V
摘要:1,1'-Binaphthyl-4,4',5,5',8,8'-hexacarboxylic acid compounds having the following formula: ##STR1## wherein R 1 is hydrogen, halogen, or alkyl; when X is oxygen, Y is hydrogen, alkyl, a cycloalkyl, or an aryl containing at least one substituent from the group including: halogen, alkyl, or alkoxy, when X is nitrogen, Y is ##STR2## wherein R 2 is hydrogen, halogen, or alkyl; Y being linked to X with the formation of a benzimidazole cycle. n The method for preparing the compounds according to the present invention resides in the treatment of that 1,1'-binaphthyl-4,4',5,5',8,8'-hexacarboxylic acid anhydride with an alkali to give a corresponding salt which is condensed with orthophenylenediamines upon heating at reflux at a pH of from 6.3 to 6.8. The resulting benzimidazole-1,1'-binaphthyl-4,4',5,5',8,8'-hexacarboxylic acid anhydride having the formula: ##STR3## wherein R 1 is hydrogen, halogen, or alkyl, is isolated and condensed with an amine or ortho-phenylenediamines in an excess of the amine, in water or an organic solvent, followed by isolation of the desired product. n The compounds according to the present invention are employed for the synthesis of asymmetric compounds of 3,4,9,10-perylenetetracarboxylic acid, as well as for dyeing and printing of textile materials with the formation, on the material, of asymmetric compounds of 3,4,9,10-perylenetetracarboxylic acid having the following formula: ##STR4## wherein R 1 is hydrogen, halogen, or alkyl; when X is oxygen, Y is hydrogen, alkyl, cycloalkyl, or aryl containing at least one substituent from the group including; halogen, alkyl, or alkoxy, when X is nitrogen, Y is ##STR5## where R 2 is hydrogen, halogen, or alkyl; Y being linked with X to form a benzimidazole cycle. n The compounds according to the present invention dye textile materials to various shades of violet color.

专利号:US-10336912-B2
优先权日:2014-08-01
标 题 :Methods for producing and using aqueous polyurethane/polyacrylate hybrid dispersions and use of said aqueous polyurethane/polyacrylate hybrid dispersions in coating agents
发明人：JAHNS EKKEHARD; MANGEL TIMO; ROESCH CHRISTINE; ROMANATO PAOLA; BURK YENI; PAKUSCH JOACHIM
权利人:BASF SE
摘要:The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.

专利号:US-2023047214-A1
优先权日:2020-02-03
标题:Methods for microwave synthesis of degradable polymers for drug delivery
发明人：MURATOGLU ORHUN K; ORAL EBRU; GRINDY SCOTT
权利人:MASSACHUSETTS GEN HOSPITAL
摘要:Provided herein are methods of making degradable, additive-blended polymeric materials using microwave radiation and catalysts. The methods can include incorporation of therapeutic materials into the polymeric materials. There also are provided polymeric materials made by the methods and medical devices comprising the polymeric materials made by the methods.

专利号:WO-2024112938-A1
优先权日:2022-11-22
标题:New method for the ozonolytic synthesis of high melting dicarboxylic acids and oxo-acids
发明人：FOLEY PATRICK; YANG YONGHUA
权利人:P2 SCIENCE INC
摘要:The present disclosure pertains to improved methods of preparing high melting dicarboxylic acids or oxo-acids (e.g., carboxylic acid/aldehydes) by ozonolysis of their esters. For example, the present disclosure provides methods for preparing brassylic acid by way of the ozonolysis of erucic acid ester, the method comprising the steps of converting the erucic acid to an ester, performing ozonolysis on the ester, and converting the resulting brassylate ester product to brassylic acid.

专利号:US-5087773-A
优先权日:1990-04-23
标 题:Selective tellurium-mediated synthesis of optically active E- or Z-allyl alcohols from optically active epoxy alcohols
发明人：DITTMER DONALD C; MURPHY CHRISTOPHER K; DISCORDIA ROBERT
权利人:UNIV SYRACUSE
摘要:Threo- and erythro- epoxy alcohols are converted in high yield to trans- and cis-allyl alcohols, respectively. The threo epoxy alcohol or erythro-epoxy alcohol is reacted with a toluenesulfonic anhydride to form a threo- or erythro- glycidyl tosylate. The glycidyl tosylate is contacted with tellurium ion, in the form, e.g. of Na2Te that has been prepared by adding tellurium in elemental form and sodium borohydride or lithium triethyl borohydride to dimethylformamide (DMF). The DMF has a low volatility and permits further work to be carried out at elevated temperatures. The glycidyl tosylate is added to the sodium telluride in DMF, and is permitted to react. The tellurium ion displaces the tosylate and opens the epoxide to form an unstable alkoxy epitelluride. This epitelluride is a short-lived intermediate, and extrudes the tellurium, leaving the olefin. The opening of the epoxide required the adoption of an anti configuration. Consequently, erythro starting compounds yield cis-allyl alcohols exclusively; threo starting compounds yield trans-allyl alcohols exclusively. If the starting compounds are optically active, the products are also optically active.

专利号:US-5519093-A
优先权日:1994-05-11
标题:Synthesis of amine functional co-and terpolymers
发明人：PINSCHMIDT JR ROBERT K; YACOUB KHALIL
权利人:AIR PROD & CHEM
摘要:Amine functional polymers are prepared by polymerization of vinylamides with vinyl ester monomers. The resultant polymers are hydrolyzed under acid conditions and subsequently at least partially basified to the free-base amine. Byproduct salts are removed by precipitation or by extraction into an immiscible phase. The polymers made by this method are crosslinkable through reaction of the amine groups and are useful in high performance coatings, adhesives, binders and the like.