CAS: 491-54-3; 3,5,7-Trihydroxy-2-(4-Methoxyphenyl)-4H-Chromen-4-One

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CAS号3570-69-2 3,5,7-trihydrox... | CAS号689260-84-2 (3-(4-methoxyph... | CAS号36804-11-2 1-[2,4,6-tris(m... | CAS号123-11-5 4-甲氧基苯甲醛; 对甲氧基苯... | CAS号65982-77-6 BENZOYLOXYPHLOR... | CAS号794-94-5 4-甲氧基羟苯甲酸酐 | CAS号520-18-3 山奈酚 | CAS号20869-95-8 堪非醇3,4'-二-O-甲醚 | CAS号108-73-6 间苯三酚 | CAS号100-09-4 对甲氧基苯甲酸 | CAS号144-62-7 草酸 | CAS号64-18-6 甲酸 | CAS号108-73-6 间苯三酚 | CAS号38681-32-2 [3,5-diacetylox...

📜山奈酚置于吡啶,Palladium 10% On Activated Carbon,氢气,Potassium Carbonate,Potassium Iodide体系中,用 甲醇,乙酸乙酯,丙酮 作为反应溶剂,化学反应 55.0H,反应生成 山奈素
参考文献:Selective Methylation Of Kaempferol Via Benzylation And Deacetylation Of Kaempferol Acetates
标题:Selective Methylation Of Kaempferol Via Benzylation And Deacetylation Of Kaempferol Acetates
摘要:开发了一种选择性对卡培菲醇进行单甲基化,二甲基化和三甲基化的策略,主要基于对卡培菲醇醋酸酯的选择性苄基化和可控的去乙酰化.通过对卡培菲醇四乙酰酸酯(1)的选择性去乙酰化和苄基化,分别得到了3,4',5-三乙酰卡培菲醇(2)和7-苄基-3,4'5-三乙酰卡培菲醇(8).通过可控的去乙酰化,然后对这两种中间体进行选择性或直接的甲基化,从卡培菲醇中总产率为51-77%制备了八种甲基化卡培菲醇.
DOI:10.3762/bjoc.11.33

专利信息

专利号:US-2007232495-A1
优先权日:2006-03-24
标题:Compositions and methods to add value to plant products, increasing the commercial quality, resistance to external factors and polyphenol content thereof
发明人：NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
权利人:NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
摘要:The invention is related to compositions and methods that naturally protect plant tissues against ultraviolet radiation and temperature, thus giving protection against sunburn to plants, plant parts, fruits and/or flowers during their development. The invention is also related to compositions and methods to naturally improve the color of plants, plant parts, fruits and/or flowers by inducing the natural synthesis of flavonoids and anthocyanins present in plants. Likewise, the present invention is directed to improving the nutritional value of plants, plant parts, fruits and/or flowers by increasing the normal levels of polyphenolic compounds, especially flavonoids, present therein. Additionally, the present invention is related to compositions and methods that give more resistance to plants, plant parts, fruits and/or flowers against pathogens as bacteria and fungi. Finally, the present invention is related to plants, plant parts, fruits, flowers and/or propagating material treated with the compositions described in the present document.

专利号:US-12036300-B2
优先权日:2021-03-31
标题:Methods and compositions for improving skin
发明人：LIAO I-CHIEN; BRIEVA PATRICIA; JUCHAUX FRANCK; BOUEZ CHARBEL; ZHENG QIAN; QIAN KUN
权利人:OREAL
摘要:A method for managing skin tone comprising reducing the synthesis of melanin by applying a skin treatment composition to skin. The skin treatment composition may include about 0.1 to about 25 wt. % of acetyl trifluoromethylphenyl valylglycine; about 0.5 to about 30 wt. % of a polyol; about 0.1 to about 30 wt. % of a silicone, fatty compound, or a mixtures thereof, wherein the skin treatment composition is an emulsion, and all weight percentages are based on the total weight of the skin treatment composition.

专利号:CN-101205223-B
优先权日:2006-12-18
标题:A kind of total synthesis method of natural product icariin compound

专利号:CN-115612114-A
优先权日:2021-07-14
标 题:Method and application of copolymer film and its enzymatic self-assembly synthesis

专利号:CN-101205223-A
优先权日:2006-12-18
标 题 :A kind of total synthesis method of natural product icariin compound