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methyl (E)-2,3-dibromopropenoate | 77809-06-4

中文名称
——
中文别名
——
英文名称
methyl (E)-2,3-dibromopropenoate
英文别名
2-Propenoic acid, 2,3-dibromo-, methyl ester, (E)-;methyl (E)-2,3-dibromoprop-2-enoate
methyl (E)-2,3-dibromopropenoate化学式
CAS
77809-06-4
化学式
C4H4Br2O2
mdl
——
分子量
243.883
InChiKey
CBTTXLCKHFLDPW-NSCUHMNNSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.9
  • 重原子数:
    8
  • 可旋转键数:
    2
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.25
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Antifungal 3,5-disubstituted furanones: From 5-acyloxymethyl to 5-alkylidene derivatives
    作者:Petr Šenel、Lucie Tichotová、Ivan Votruba、Vladimír Buchta、Marcel Špulák、Jiří Kuneš、Milan Nobilis、Ondřej Krenk、Milan Pour
    DOI:10.1016/j.bmc.2010.01.030
    日期:2010.3
    parent furanone structure were therefore prepared and evaluated. In line with the ease of elimination of the substituent from C5, low activities of the 5-alkoxy compounds were observed. On the other hand, their 5-aryloxymethyl congeners were found to be capable of liberating the antifungally active 5-methylene furanone into the testing medium. The antifungal effect of the 5-alkylidene derivatives was
    发现先前描述为高度抗真菌活性的5-乙酰氧基甲基-3-(4-溴苯基)-2,5-二氢呋喃-2-酮可通过DMSO异常消除C5处的酯基来提供相应的5-亚甲基衍生物在抗真菌试验条件下。由于后者具有与最初报道的抗真菌作用几乎相同的抗真菌作用,因此5-乙酰氧基甲基呋喃酮仅用作实际的抗真菌活性物质的前体。因此,制备并评估了一系列在母体呋喃酮结构的C5处具有烷氧基,芳氧基和亚烷基取代基的化合物。与从C5中消除取代基的容易性相一致,观察到5-烷氧基化合物的活性低。另一方面,发现它们的5-芳氧基甲基同源物能够将抗真菌活性的5-亚甲基呋喃酮释放到测试介质中。5-亚烷基衍生物的抗真菌作用对亚烷基部分的取代高度敏感。为了保持化合物的高活性,在烯丙基位置的取代基是必需的。细胞抑制活性的并行评估显示抗真菌活性衍生物对HeLa S3和CCRF-CEM系的中等活性。用5-亚甲基-3-(4-溴苯基)-2,5-二氢呋喃-2-酮处
  • Stereocontrolled synthesis of lissoclinolide by sequential transition metal-catalyzed lactonization/cross-coupling reactions
    作者:Renzo Rossi、Fabio Bellina、Matteo Biagetti、Luisa Mannina
    DOI:10.1016/s0040-4039(98)01705-5
    日期:1998.10
    Lissoclinolide, 1, which is an antibiotic butenolide isolated from a Tuncate, has been synthesized stereoselectively by a reaction sequence in which the Ag(I)-catalyzed lactonization of (2E,6E)-2-bromo-8-hydroxy-2,6-octadien-4-ynoic acid, (E,E)-13, and the Pd/Cu-catalyzed cross-coupling reaction of so obtained (Z)-2-bromo-5-[(E)-4-hydroxy-2-butenylidene]-5H-furan-2-one, (Z,E)-14, with (E)-3-hydroxy-1-propenyltributylstannane
    Lissoclinolide 1是一种从Tuncate分离出来的抗生素丁烯内酯,它是通过反应序列立体选择性地合成的,在该反应序列中,Ag(I)催化了(2 E,6 E)-2-溴8-羟基-2的内酯化反应,6-辛二烯-4-壬酸((E,E)-13以及由此获得的(Z)-2-溴-5-[[ E)-4-羟基]的Pd / Cu催化的交叉偶联反应(-2-丁烯叉基)-5 H-呋喃-2-酮(Z,E)-14和(E)-3-羟基-1-丙烯基三丁基锡烷15被用作关键步骤。
  • Selective Synthesis of 5,6-Disubstituted 3-Methyl-2(2H)-pyranones and 6-Substituted 3-Methyl-2(2H)-pyranones, Including Fusalanipyrone and Gibepyrone A
    作者:Matteo Biagetti、Fabio Bellina、Adriano Carpita、Stéphane Viel、Luisa Mannina、Renzo Rossi
    DOI:10.1002/1099-0690(200203)2002:6<1063::aid-ejoc1063>3.0.co;2-m
    日期:2002.3
    The 6-substituted 3-bromo-5-iodo-2(2H)-pyranones 11, prepared by iodolactonization of the corresponding 5-substituted (E)-2-bromo-2-en-4-ynoic acids 10, were used as precursors to 5,6-disubstituted 3-methyl-2(2H)-pyranones 8 and 6-substituted 3-methyl-2(2H)-pyranones 7. The synthesis of compounds 8 involved two consecutive Stille-type reactions, whereas the approach followed to prepare compounds 7
    6-取代的 3-溴-5-碘-2(2H)-吡喃酮 11,通过相应的 5-取代 (E)-2-溴-2-en-4-ynoic 酸 10 的碘内酯化制备,用作5,6-二取代的 3-甲基-2(2H)-吡喃酮 8 和 6-取代的 3-甲基-2(2H)-吡喃酮的前体 7. 化合物 8 的合成涉及两个连续的 Stille 型反应,而该方法随后制备化合物 7 包括将二卤衍生物 11 选择性还原为相应的 6-取代 3-溴-2(2H)-吡喃酮 12,然后与四甲基锡进行 Pd/Cu 催化反应。然而,这种合成化合物 7 的方法被证明不适合制备立体异构纯的 fusalanipyrone (7a),一种从茄病镰刀菌中分离的天然产物。尽管如此,7a 和gibepyrone A (7b),它是从藤黑赤霉中分离出来的天然产物,可以通过包括易得的 (2Z,6Z)- 和 (2Z,6E)-2,6-二甲基-2,6-octadien-的
  • A New Stereocontrolled Synthesis of the Racemic Forms of Savinin and Gadain
    作者:Renzo Rossi
    DOI:10.1055/s-1997-1299
    日期:1997.9
    A concise stereocontrolled synthesis of the racemic forms of two naturally occurring lignans, savinin (5) and gadain (6), is described. The reaction sequences used for the preparation of these lignans involve: (i) a regioselective and stereospecific Pd-mediated reaction between (3,4-methylenedioxy)phenylzinc chloride (15a) and the easily available methyl (Z)- and (E)-2,3-dibromopropenoate [(Z)- and (E)-(14)], respectively; (ii) a Pd-mediated reaction between the 3-aryl substituted 2-propenylzinc chloride (17) and the stereoisomerically pure 3-aryl-2-bromopropenoates (Z)- and (E)-16, respectively, so obtained; and (iii) treatment of the resulting dienyl esters (E)- and (Z)-18, with dicyclohexylborane followed by oxidation with 30% H2O2 in the presence of alkali and subsequent lactonization.
    本文描述了两种天然存在的木脂素(savinin (5)和gadain (6))外消旋形式的简明立体控制合成。制备这些木脂素所用的反应序列包括:(i) (3,4-亚甲基二氧基)苯基氯化锌(15a)与容易获得的(Z)-和(E)-2,3-二溴丙烯酸甲酯[(Z)-和(E)-(14)]分别发生Pd介导的位点选择性和立体选择性反应;(ii) 3-芳基取代的2-丙烯基氯化锌(17)与分别由此获得的立体异构体纯的3-芳基-2-溴丙烯酸酯(Z)-和(E)-16发生Pd介导的反应;以及(iii) 用二环己基硼烷处理所得的二烯酯(E)-和(Z)-18,然后在碱存在下用30%的H2O2氧化,最后进行内酯化。
  • New procedures for the selective synthesis of 2(2H)-pyranone derivatives and 3-aryl-4-iodoisocoumarins
    作者:Matteo Biagetti、Fabio Bellina、Adriano Carpita、Paolo Stabile、Renzo Rossi
    DOI:10.1016/s0040-4020(02)00469-6
    日期:2002.6
    5-Iodo-2(2H)-pyranone derivatives have been selectively synthesized by reaction of stereodefined methyl 2-en-4-ynoates with iodine in MeCN, CH2Cl2 or C6H6 at 20degreesC (Method C) or by treatment of these esters with ICl in CH2Cl2 at 20degreesC (Method B). Methods B and C proved also to be suitable for the preparation of 3-aryl-4-iodoisocoumarins from the corresponding methyl 2-(arylethynyl)benzoates. Interestingly, the high selectivity of iodolactonization of stereodefined methyl 2-en-4-ynoates by Method B allowed preparation in moderate yields of 2(2H)-pyranone derivatives by a one-pot sequence of iodolactonization and Stille-type reactions. (C) 2002 Elsevier Science Ltd. All rights reserved.
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