108-59-8 = 868-26-8 反应条件:1.1 Reagents: Ceric Ammonium Nitrate,1H-Imidazolium,3-(Carboxymethyl)-1-Methyl-,Bromide (1:1) Solvents: 1H-Imidazolium,3-(Carboxymethyl)-1-Methyl-,Bromide (1:1); 3.0 H,Rt1.2 Reagents: Water; Rt 标题:Halogenation Of Carbonyl Compounds By An Ionic Liquid,[acmim]X,And Ceric Ammonium Nitrate (Can) 作者:Ranu,Brindaban C.; Et Al 参考文献:Australian Journal Of Chemistry 日期:2007 卷标:60(5) 页码:358-362]
108-59-8 = 868-26-8 + 37167-59-2 反应条件:1.1 Reagents: N-Bromosuccinimide Catalysts: 2-Methyl-1H-Indole-3-Carboxylic Acid Ethyl Ester Solvents: Heptane; 18 H,25 °C 标题:Lipophilic Indole Mediated Chemoselective α-Monobromination Of 1,3-Dicarbonyl Compounds 作者:Wong,Jonathan; Et Al 参考文献:Tetrahedron Letters 日期:2020 卷标:61(16)]
603-36-1 + 37167-59-2 = 868-26-8 反应条件:1.1 Solvents: Benzene 标题:Studies Of The Application Of Elementoorganic Compounds Of The Fifteenth And Sixteenth Groups In Organic Synthesis. 67. Tributylstibine Mediated Synthesis Of 1,1,2-Trisubstituted Cyclopropanes 作者:Chen,Chen; Et Al 参考文献:Tetrahedron 日期:1989 卷标:45(10) 页码:3011-20
丙二酸二甲酯置于溴体系中,用 四氯化碳 作为反应溶剂,以62%的收率获得产物溴丙二酸二甲酯 参考文献:Synthesis And Decarboxylation Of δ2-Cephem-4,4-Dicarboxylic Acids 标题:Synthesis And Decarboxylation Of δ2-Cephem-4,4-Dicarboxylic Acids 摘要:青霉素v经过14个步骤转化为具有c-3处氢,C-2处氢或乙基,以及c-4处两个甲氧羰基,两个苄氧羰基或一个甲氧羰基和一个苄氧羰基取代基的δ2-头孢菌素.通过碱性水解(对甲酯类)或氢解(对苄酯类)去保护这些δ2-头孢菌素-4,4-二羧酸酯,在所有情况下都导致δ2-头孢菌素-4,4-二羧酸或δ2-头孢菌素-4,4-二羧酸单酯的快速脱羧.c-2处为氢时,用1当量碱水解二甲酯酯类产生δ2-头孢菌素.用2当量碱,并且所有化合物c-2处为甲基时,水解或氢解得到4α-取代的δ2-头孢菌素. 相比之下,更简单的苄或甲基乙酰胺丙二酸酯可以轻松去保护以得到稳定的丙二酸.使用半经验(am1)和从头算(3-21G)分子轨道计算研究了脱羧难易度差异的原因.发现未离子化的头孢菌素或乙酰胺丙二酸的脱羧能垒较高(35-40 Kcal Mol-1).尽管乙酰胺丙二酸的单负离子保留了较高的能垒,但δ2-头孢菌素丙二酸的异构单负离子脱羧能垒仅为2 Kcal Mol-1.关键词:巯基氮杂环丙酮酮,溴丙二酸酯,分子轨道计算,亚氧化物,氢解. DOI:10.1139/v01-100
专利号:CN-114805268-B 优先权日:2022-04-28 标 题 :Visible light-mediated synthesis of cyclopent[b]benzofuran derivatives
专利号:US-3090791-A 优先权日:1960-07-25 标题 :Synthesis of griseofulvin and analogues, and intermediates therefor 发明人:ARNOLD BROSSI; EMILIO KYBURZ 权利人:HOFFMANN LA ROCHE
专利号:CN-114805268-A 优先权日:2022-04-28 标 题 :Visible light-mediated synthesis of cyclopenta[b]benzofuran derivatives
专利号:US-9115102-B2 优先权日:2009-09-17 标题 :N-[2-hydroxycarbamoyl-2-(piperazinyl) ethyl] benzamide compounds, their preparation and their use as TACE inhibitors 发明人:CHAMBON SANDRINE; CLARY LAURENCE; SCHUPPLI MARLENE 权利人:CHAMBON SANDRINE; CLARY LAURENCE; SCHUPPLI MARLENE; GALDERMA RES & DEV 摘要:The present invention relates to novel benzene-carboxamide compounds having a structure that corresponds to the general formula (I), and also to their method of synthesis and to their use in pharmaceutical compositions intended for use in human or veterinary medicine or else to their use in cosmetic compositions.
专利号:CN-114456065-B 优先权日:2021-12-23 标 题 :Synthesis method of caronic acid diester compound and caronic acid derivative
专利号:CN-114456065-A 优先权日:2021-12-23 标 题 :Synthesis method of carinic acid diester compound and carinic acid derivative
[参考文献]: Yi-Ning Xuan, Et Al. Highly Enantioselective Synthesis Of Nitrocyclopropanes Via Organocatalytic Conjugate Addition Of Bromomalonate To Alpha,Beta-Unsaturated Nitroalkenes. Org Lett. 2009 Apr 2;11(7):1583-6.
合成参考文献
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