CAS: 131-54-4; 2,2'-Dihydroxy-4,4'-Dimethoxybenzophenone

相似化合物

131-57-7 41351-30-8 131-55-5

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CAS号150-19-6 3-甲氧基苯酚 | CAS号78031-08-0 [bromo(difluoro... | CAS号108-98-5 硫酚 | CAS号3555-85-9 2 2' 4 4'-TETRA... | CAS号151-10-0 间苯二甲醚 | CAS号2237-36-7 4-甲氧基水杨酸 | CAS号39828-35-8 2,4-二甲氧基苯甲酰氯 | CAS号3555-85-9 2 2' 4 4'-TETRA... | CAS号131-55-5 2,2',4,4'-四羟基二苯甲酮

苯硫酚置于四氯化钛,Sodium Hydride体系中,用 二氯甲烷,N,N-二甲基甲酰胺 用作溶剂,化学反应 19.75H,反应生成2,2'-二羟基-4,4'-二甲氧基二苯甲酮
参考文献:通过 α-氟碳阳离子与溴二氟(苯硫基)甲烷进行 Friedel-Crafts 型烷基化反应:硫酯,二苯酮和氧杂蒽酮的合成
标题:通过 α-氟碳阳离子与溴二氟(苯硫基)甲烷进行 Friedel-Crafts 型烷基化反应:硫酯,二苯酮和氧杂蒽酮的合成
摘要:溴二氟(苯硫基)甲烷通过 α-氟碳阳离子与活化的芳族化合物发生弗瑞德-克拉夫茨型烷基化反应,生成硫酯和/或二苯甲酮.该方法已应用于合成天然存在的呫吨酮衍生物.
Doi:10.1002/ejoc.201100715

专利信息

专利号:US-7598291-B2
优先权日:2004-09-02
标题 :Methods and compositions for enhancing collagen and proteoglycan synthesis in the skin
发明人：NIMNI MARCEL; HAN BO
权利人:NIMNI MARCEL; HAN BO
摘要:A composition for application to the skin can stimulate the in vivo synthesis of collagen and proteoglycans and improve the appearance of the skin, increasing its elasticity and fullness. In general, a composition according to the present invention comprises: (1) an antioxidant compound in a quantity sufficient to enhance collagen synthesis in the skin; (2) an organic penetrant in which the antioxidant compound is soluble in a sufficient quantity that a concentration of the antioxidant compound sufficient to enhance collagen synthesis can be applied topically and penetrate the skin; (3) a mixture of essential amino acids; (4) a supplemental source of sulfur; and (5) a topical pharmaceutically acceptable carrier. The antioxidant compound can be lipoic acid, a lipoic acid analogue or derivative, a bioflavonoid, a constituent of ginkgo, or an isoflavone. The organic penetrant is preferably benzyl alcohol. Other ingredients, such as esters of tocopherol and ascorbic acid, can be included.

专利号:US-2010160244-A1
优先权日:2004-09-02
标 题 :Methods and compositions for enhancing collagen, proteoglycan, and glutathione synthesis in the skin
发明人：NIMNI MARCEL; HAN BO
权利人:NIMNI MARCEL; HAN BO
摘要:A composition for application to the skin can stimulate the in vivo synthesis of collagen and proteoglycans and improve the appearance of the skin, increasing its elasticity and fullness. In general, a composition according to the present invention comprises: (1) an antioxidant compound in a quantity sufficient to enhance collagen synthesis in the skin; (2) an organic penetrant in which the antioxidant compound is soluble in a sufficient quantity that a concentration of the antioxidant compound sufficient to enhance collagen synthesis can be applied topically and penetrate the skin; (3) a mixture of essential amino acids or hydrolyzed whey protein; (4) a supplemental source of sulfur; and (5) a topical pharmaceutically acceptable carrier. The antioxidant compound can be lipoic acid or a lipoic acid analogue or derivative. The organic penetrant is preferably benzyl alcohol. Other ingredients, such as esters of tocopherol and ascorbic acid, can be included.

专利号:US-3965125-A
优先权日:1971-02-08
标题:Synthesis of certain bis(phthalic anhydrides)
发明人：MEYERS ROBERT A
权利人:TRW INC
摘要:Monomeric high molecular weight dianhydrides or tetraacids can be produced by the nucleophilic coupling of a halo substituted phthalimides acid and an aliphatic or aromatic compound having polyfunctional groups capable of reacting with the halo moiety of the phthalinide followed by hydrolysis and dehydration. Specifically, 4-chlorophthalate sodium salt is converted to an imide to reduce side reactions with the carboxylic acid groups prior to reaction with 4,4'-disodiumdiphenylene oxide sulfone or 2,2-di (4-sodium phenoxide) propane. After the reaction of the imide and the sulfone or propane compounds, the diimide formed is converted to the corresponding dianhydride.

专利号:US-6150403-A
优先权日:1997-10-14
标 题 :Topical compositions for regulating the oily/shiny appearance of skin
发明人：BIEDERMANN KIMBERLY A; SCHUBERT HARRY L; PARRAN JR JOHN J
权利人:PROCTER & GAMBLE
摘要:The present invention relates to methods for inhibiting sebaceous gland activity in mammalian skin comprising administration of a topical composition comprising dehydroacetic acid or pharmaceutically acceptable salts thereof, and a dermatologically-acceptable carrier. The present invention also relates to methods and topical compositions further comprising agents which regulate the oily and/or shiny appearance of skin, and agents which treat acne and related skin disorders in mammalian skin and scalp. Methods of reducing sebum synthesis with the use of dehydroacetic acid, methods of regulating the oily and/or shiny appearance of skin, and methods of treating acne and other skin disorders are also encompassed by the present invention.

专利号:US-8309655-B2
优先权日:2009-12-22
标题 :Methods for the preparation of a poly(arylene ether) polysiloxane multiblock copolymer, multiblock copolymers produced thereby, and associated compositions and articles
发明人：KAMALAKARAN RADHA; SRINIVASAN VEERARAGHAVAN; CHOWDHURY RAJESH; KARAMBELKAR VIVEK VASANT
权利人:KAMALAKARAN RADHA; SRINIVASAN VEERARAGHAVAN; CHOWDHURY RAJESH; KARAMBELKAR VIVEK VASANT; SABIC INNOVATIVE PLASTICS IP
摘要:A poly(arylene ether)-polysiloxane multiblock copolymer is prepared by the reaction of a hydroxy-diterminated poly(arylene ether), a hydroxyaryl-diterminated polysiloxane, and an aromatic diacid chloride. This synthesis overcomes disadvantages of known syntheses of poly(arylene ether)-polysiloxane block copolymers. The poly(arylene ether)-polysiloxane multiblock copolymer is useful for improving the melt processability of poly(arylene ether) compositions.

专利号:US-12076423-B2
优先权日:2015-12-23
标题 :Spiculisporic acid-based composition
发明人：AGNAOU REDA; MARION CATHERINE
权利人:OREAL
摘要:Composition in the form of an oil-in-water emulsion that includes at least 1% of an oil phase, and an aqueous phase. The composition includes 0.1 to 15 wt % spiculisporic acid relative to the total weight of the composition, at least one base selected from amino acids and alkanolamines in an amount suitable for forming at least a monosalt of spiculisporic acid, less than 3% glycol(s) and/or polyol(s) relative to the total weight of the composition, at least one UV filter and/or an additive selected from volatile aromatic materials such as essential oils and fragrance substances, fillers, dyeing materials such as pigments, mother-of-pearl or particles with a metallic sheen, moisturizers, anti-wrinkle or anti-age agents, peeling agents, antioxidants, active ingredients stimulating the synthesis of epidermal and/or dermal macromolecules, dermo-relaxing agents, depigmentation agents, deodorant agents and mixtures thereof.