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methyl 7-benzyloxy-6-iodo-8-methoxy-1-oxo-1H-isochromene-3-carboxylate | 842150-47-4

中文名称
——
中文别名
——
英文名称
methyl 7-benzyloxy-6-iodo-8-methoxy-1-oxo-1H-isochromene-3-carboxylate
英文别名
iodoisocoumarin;1h-2-Benzopyran-3-carboxylic acid,6-iodo-8-methoxy-1-oxo-7-(phenylmethoxy)-,methyl ester;methyl 6-iodo-8-methoxy-1-oxo-7-phenylmethoxyisochromene-3-carboxylate
methyl 7-benzyloxy-6-iodo-8-methoxy-1-oxo-1H-isochromene-3-carboxylate化学式
CAS
842150-47-4
化学式
C19H15IO6
mdl
——
分子量
466.229
InChiKey
PGHADDYQLBDDTQ-UHFFFAOYSA-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

物化性质

  • 熔点:
    156 °C
  • 沸点:
    581.8±50.0 °C(Predicted)
  • 密度:
    1.644±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    4.1
  • 重原子数:
    26
  • 可旋转键数:
    6
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.16
  • 拓扑面积:
    71.1
  • 氢给体数:
    0
  • 氢受体数:
    6

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

反应信息

点击查看最新优质反应信息

文献信息

  • An Expedient and Short Synthesis of a 6-Iodo Isocoumarin Building Block for the Rubromycin Family and its First Palladium-Catalyzed Couplings
    作者:Hans-Ulrich Reissig、Malte Brasholz
    DOI:10.1055/s-2004-835658
    日期:——
    An efficient six-step synthesis of 6-iodo substituted isocoumarin 6 is presented, which is a suitable building block for the preparation of rubromycin type compounds. Key transformations of the sequence were achieved by directed ortho-lithiation, Horner-Wadsworth-Emmons olefination and condensation processes. The protected isocoumarin 7 was successfully employed in first Heck and Sonogashira coupling
    提出了 6-碘取代的异香豆素 6 的高效六步合成,它是制备红霉素类化合物的合适构件。该序列的关键转变是通过定向邻位锂化、Horner-Wadsworth-Emmons 烯化和缩合过程实现的。受保护的异香豆素 7 已成功用于 Heck 和 Sonogashira 的第一次偶联反应。
  • Lessons Learned During Spiroketalization Experiments: Progress and Setbacks in the Preparation of Oxygenated Rubromycins and Synthesis of 3′-Deoxyheliquinomycinone
    作者:Michael Wilsdorf、Sebastian Sörgel、Hans-Ulrich Reissig
    DOI:10.1002/ejoc.201601225
    日期:2016.12
    In this account we disclose our results on the synthesis of 3-hydroxy-substituted rubromycin derivatives. We reevaluate our methoxyallene-based first-generation approach to this class of natural products, that so far suffered from a notoriously inefficient late-stage spiroketalization step. While resuming model studies we recognized that the success of this acid-mediated key transformation is highly
    在这个帐户中,我们公开了我们合成 3-羟基取代的红霉素衍生物的结果。我们重新评估了我们对此类天然产物的基于甲氧基丙二烯的第一代方法,迄今为止,该方法存在着名的低效后期 spiroketalization 步骤。在恢复模型研究时,我们认识到这种酸介导的关键转化的成功高度依赖于溶剂。结果证明甲醇是首选的溶剂。对于一种底物,意想不到的分子内 Friedel-Crafts 型烷基化提供了一种有趣的六环副产物。基于这些观察,并对合成路线进行了多次调整,但仍保持原有的逆合成策略,
  • Model Studies for the Synthesis of Heliquinomycin: Preparation of New Spiroketals
    作者:Hans-Ulrich Reissig、Chelvam Venkatesh
    DOI:10.1055/s-0028-1083194
    日期:2008.11
    New model compounds were investigated within our efforts to synthesize the natural product heliquinomycin. We could provide good evidence that electronic effects prevent the spiroketal formation of compounds such as 5 incorporating an isocoumarin moiety. As a consequence, precursors 16 and 26 were prepared, which do not exert the strong electron-withdrawing effect of the methoxycarbonyl group present in 5. Dihydroisocumarin derivative 10 and phthalide 25 were coupled by Heck reactions with enone 4 to provide the required precursors 16 and 26. After reductive debenzylation the resulting intermediates were treated with anhydrous hydrochloric acid in alcohols to give spiroketals 18-20 and 28, 29 in reasonable yields. The spiroketalizations occur under thermodynamic control affording products with the hydroxyl group in a trans-relationship with respect to the pyran oxygen atom. Attempts to oxidatively convert dihydroisocumarin 19 into an isocoumarin derivative failed. In one attempt a ring contraction to new spiroketal 24 was observed.
    在合成天然产品氦喹霉素的过程中,我们研究了新的模型化合物。我们可以提供确凿证据,证明电子效应阻止了含有异香豆素分子的化合物(如 5)形成螺酮。因此,我们制备了前体 16 和 26,它们不会像 5 中的甲氧基羰基那样产生强烈的夺电子效应。二氢异香豆素衍生物 10 和邻苯二甲酸盐 25 与烯酮 4 发生赫克反应,得到所需的前体 16 和 26。还原脱苄基化后,生成的中间体在醇中用无水盐酸处理,得到螺酮 18-20 和 28、29,收率合理。螺酮化反应是在热力学控制下进行的,生成物中的羟基与吡喃氧原子呈反式关系。将二氢异鼠李素 19 氧化转化为异香豆素衍生物的尝试失败了。在一次尝试中,观察到环收缩成新的螺酮 24。
  • Towards the Rubromycins: An Efficient Synthesis of a Suitable Isocoumarin Precursor, its Lactam Analogue, and Palladium-Catalyzed Couplings
    作者:Malte Brasholz、Xiaosong Luan、Hans-Ulrich Reissig
    DOI:10.1055/s-2005-918417
    日期:——
    6-Iodoisocoumarin 4 and its aza-analogue, 6-iodo-1-oxo-isoquinoline 29, were efficiently prepared from vanillin in seven and six steps, respectively. Key transformations in their syntheses were achieved by directed ortho-lithiation and variations of Horner-Wadsworth-Emmons reactions. Both 6-iodoisocoumarin 4 and its aza-analogue were designed for insertion into syntheses of rubromycin type target structures via palladium-catalyzed coupling reactions. For the isocoumarin subunit, this plan could be confirmed through Heck, Sonogashira, and Suzuki reactions of our building block with various substrates.
    通过七个步骤和六个步骤,分别从香兰素中高效地制备出了 6-碘异香豆素 4 及其杂氮类似物 6-碘-1-氧代异喹啉 29。合成过程中的关键转化是通过定向原位硫化和霍纳-沃兹沃斯-艾蒙斯反应的变化实现的。6-iodoisocoumarin 4 及其氮杂类似物都被设计用于通过钯催化的偶联反应插入红霉素类目标结构的合成中。对于异香豆素亚基,这一计划可以通过我们的结构单元与各种底物的 Heck、Sonogashira 和 Suzuki 反应得到证实。
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