CAS: 131-53-3; (2-Hydroxy-4-Methoxyphenyl)(2-Hydroxyphenyl)Methanone

上下游产品

CAS号131-57-7 紫外线吸收剂UV-9 | CAS号611-94-9 4-甲氧基二苯甲酮 | CAS号21615-34-9 邻甲氧基苯甲酰氯 | CAS号151-10-0 间苯二甲醚 | CAS号33077-87-1 2,2',4-三甲氧基苯甲酮 | CAS号150-19-6 3-甲氧基苯酚 | CAS号69-72-7 水杨酸 | CAS号3722-51-8 3-羟基-9H-占吨-9-酮

紫外线吸收剂uv-9置于dipotassium Peroxodisulfate,Palladium Diacetate,三氟乙酸,三氟乙酸酐体系中,用82%的收率获得2,2'-二羟基-4-甲氧基二苯甲酮
参考文献:通过弱配位与 Tfa/tfaa 进行 Pd 催化的 Sp2 C-H 羟基化
标题:通过弱配位与 Tfa/tfaa 进行 Pd 催化的 Sp2 C-H 羟基化
摘要:已开发出一种有效的 Sp2 C-H 羟基化反应,用于通过钯 (II) 催化合成各种官能化酚与芳基酮,苯甲酸酯,苯甲酰胺,乙酰苯胺和磺酰胺.三氟乙酸(tfa)/三氟乙酸酐(tfaa)共溶剂体系作为氧源,是弱配位促进c-H活化的关键因素.
Doi:10.1055/s-0033-1339871

专利信息

专利号:US-7662401-B2
优先权日:2002-04-08
标 题 :Administration of extracts of nonfruiting nonphotosynthetic filamentous bacteria for increasing the endogenous synthesis of superoxide dismutase
发明人：MAHE YANN; MEYBECK ALAIN
权利人:OREAL
摘要:The present invention relates to the cosmetic or pharmaceutical use of an extract of a nonfruiting nonphotosynthetic filamentous bacterium in a composition containing a cosmetically or pharmaceutically acceptable medium, as an agent increasing the endogenous synthesis of superoxide dismutase, in particular for preventing and/or limiting the formation of free radicals and/or removing the free radicals present in cells; in addition, the invention relates to a composition comprising at least one extract of Vitreoscilla filiformis and lycopene.

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-7141238-B2
优先权日:1998-04-02
标题:Compositions for reducing UV-induced inhibition of collagen biosynthesis in human skin
发明人：FISHER GARY J; VOORHEES JOHN J
权利人:UNIV MICHIGAN
摘要:Exposure of human skin to ultraviolet (UV) radiation from the sun not only induces the production of enzymes (matrix metalloproteinases) that degrade collagen, but also inhibits the synthesis of new collagen by inhibiting the synthesis of procollagen. This UV-induced inhibition of the synthesis of collagen can be prevented by the topical application of a retinoid or c-JUN inhibitor to the skin prior to exposure to UV radiation.

专利号:US-10799441-B2
优先权日:2011-06-06
标题:Skin treatments containing pyrroloquinoline quinone (PQQ) esters and methods of preparation and use thereof
发明人：LEWIS II JOSEPH ABERNATHY; DINARDO JOSEPH C
权利人:LEWIS II JOSEPH ABERNATHY; DINARDO JOSEPH C; PCR TECH HOLDINGS LC
摘要:The present invention relates to cosmetic or dermatological compositions containing PQQ or its esters, methods of treating or promoting skin changes by topical application of these compositions, and methods of synthesis of PQQ esters. The PQQ ester-containing compositions of the present invention are unexpectedly effective in treating skin, particularly with respect to skin tolerance. When included in a topical composition, the PQQ esters of the present invention have an antioxidant effect that is useful in treating a skin change.

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.