2-N,N-diethylcarboxamido-3-methoxyphenyl boronic acid | 133730-22-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-N,N-diethylcarboxamido-3-methoxyphenyl boronic acid
• 英文别名: 3-methoxy-2-(N,N-diethylcarboxamido)phenylboronic acid；(3-Methoxy-2-(diethylcarbamoyl)phenyl)boronic acid；(2-(diethylcarbamoyl)-3-methoxyphenyl)boronic acid；[2-(Diethylcarbamoyl)-3-methoxyphenyl]boronic acid
• CAS: 133730-22-0
• 化学式: C₁₂H₁₈BNO₄
• 分子量: 251.09
• InChiKey: YZLASAPAGOFDDQ-UHFFFAOYSA-N

物化性质

• 沸点：
  479.0±55.0 °C(Predicted)
• 密度：
  1.16±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.14
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  70
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-N,N-diethylcarboxamido-3-methoxyphenyl boronic acid 在 四(三苯基膦)钯 、 sodium carbonate 作用下， 以 溶剂黄146 为溶剂， 反应 16.08h， 生成 3,7-Dimethoxy-6H-dibenzopyran-6-one
  参考文献：
  名称：

  正和远程金属化——交叉耦合策略。天然芴酮登吉布西宁和氮杂荧蒽生物碱伊米黄素的全合成

  摘要：

  描述了天然芴酮、登吉布西宁 (7a) 和氮杂荧蒽生物碱、伊米黄素 (30e) 的全合成。使用在 Friedel-Crafts (18b → 6d) 和远程金属化 (21a,b → 6c,d) 反应中终止的组合邻位金属化-交叉偶联序列，报道了芴酮二甲醚 6c 和 6d 的合成。图 6c 和 6d 分别与源自天然产物的登吉布新二甲醚和登吉布新二甲醚不同。这项工作与来自 Sargent 和 Talapatra 的合成和结构证据一起，导致了登吉布西宁 (7a) 和登吉布新 (7b) 结构的重新分配。使用金属化 - 交叉耦合方法，提出了重新分配的登吉布西宁 (7a) 的合成。简要描述了两种替代的不成功的伊米黄方法（31 + 32 和 33 + 34）。成功的方法包括远程金属化 - 双环化，43 → 44，作为关键步骤。

  DOI：

  10.1139/v94-035
• 作为产物：
  描述：

  邻甲氧基苯甲酸 在 氯化亚砜 、 四甲基乙二胺 、 仲丁基锂 作用下， 以 四氢呋喃 、 环己烷 为溶剂， 反应 1.0h， 生成 2-N,N-diethylcarboxamido-3-methoxyphenyl boronic acid
  参考文献：
  名称：

  Directed Metalation–Suzuki–Miyaura Cross-Coupling Strategies: Regioselective Synthesis of Hydroxylated 1-Methyl-phenanthrenes

  摘要：

  A general, efficient, and regioselective synthesis of a series of hydroxylated 1-methylphenanthrenes 9 by a combined directed ortho metalation (DoM)-Suzuki-Miyaura cross-coupling directed remote metalation (DreM) sequence is reported. Diversity to this methodology was achieved by a regioselective DoM rather than DreM reaction, affording more highly substituted phenanthrols (Table 2). Application of the turbo-Grignard reagent (i-PrMgCl-LiCl) in the Ni-catalyzed Corriu-Kumada reaction gave efficient decarbamoylation (Tables 3 and 4). Additional features are the TMS protecting group and halo-induced ipso-desilylation tactics applied to the regioselective synthesis of phenanthrenes (Scheme 2).

  DOI：

  10.1021/acs.joc.5b01300

文献信息

• Iridium-Catalyzed CH Activation versus Directed<i>ortho</i>Metalation: Complementary Borylation of Aromatics and Heteroaromatics
  作者：Timothy E. Hurst、Todd K. Macklin、Maike Becker、Eduard Hartmann、Wolfgang Kügel、Jean-Christophe Parisienne-La Salle、Andrei S. Batsanov、Todd B. Marder、Victor Snieckus

  DOI：10.1002/chem.201000401

  日期：2010.7.19

  Systematic studies are presented demonstrating the complementarity of directed ortho metalation (DoM) and Ir‐catalyzed strategies for the provision of borylated aromatics and their subsequent Suzuki–Miyaura coupling reactions. A new concept, the use of the TMS group, readily introduced by DoM, as a latent regiodirective moiety to overcome the otherwise problematic production of isomeric borylated product

  进行了系统研究，证明了定向邻位金属化（D o M）和Ir催化策略的互补性，这些策略提供了硼化芳族化合物及其随后的Suzuki-Miyaura偶联反应。提出了一种新的概念，即由D o M容易引入的TMS基团作为潜在的区域定向基团，以克服异构化的硼酸酯化产物混合物的否则成问题的生产。附加电子试剂诱导的本位-deborylation和d ö的BPIN产品的M个反应说明。
• The directed ortho metalation connection to aryl-aryl cross coupling.A general regiospecific synthesis of phenanthrols
  作者：J.-m. Fu、M.J. Sharp、V. Snieckus

  DOI：10.1016/s0040-4039(00)80786-8

  日期：1988.1

  A general directed metalation-based cross coupling synthesis of phenanthrols 4 has been developed (Scheme 1); reactions of derived triflates and carbamates 10 lead to a variety of substituted phenanthrenes 7 → 12 (Scheme 2).

  基菲酚类的一般涉及基于金属化交叉耦合合成4已被开发（方案1）; 衍生的三氟甲磺酸酯和氨基甲酸酯10的反应会生成各种取代的菲7 → 12（方案2）。
• The directed <i>ortho</i> metalation - palladium catalyzed cross coupling connection. A general regiospecific route to 9-phenanthrols and phenanthrenes. Exploratory further metalation
  作者：Jian-min Fu、Victor Snieckus

  DOI：10.1139/v00-055

  日期：2000.6.1

  A new general and regiospecific synthesis of 9-phenanthrols (1 +2 3 4, Scheme 1, Table 1) proceeding by a Directed ortho Metalation (DoM), Suzuki-Miyaura cross coupling, and a new LDA-mediated Directed remote Metalation sequence is described. The facile Pd-catalyzed hydrogenolysis of the phenanthrols 4 into the corresponding phenanthrenes 5 via their triflates 18 translates the original DoM regioselectivity

  通过定向邻金属化 (DoM)、Suzuki-Miyaura 交叉偶联和新的 LDA 介导的定向远程金属化序列进行的 9-菲酚（1 +2 3 4，方案 1，表 1）的新的通用和区域特异性合成是描述。通过三氟甲磺酸酯 18 的 Pd 催化氢解菲醇 4 为相应的菲 5 将原始的 DoM 区域选择性也转化为菲的一般合成（表 2）。进一步报道了菲衍生物的 DoM (19 20, 21; 24 25)、交叉偶联 (20c 23) 以及氧化-环收缩 (4b, 4f 28a, 28b) 化学。 关键词：9-菲醇，定向邻位金属化，铃木交叉偶联，合成。
• What Is the Structure of the Antitubercular Natural Product Eucapsitrione?
  作者：Glenn A. Pullella、Duncan A. Wild、Gareth L. Nealon、Mikhail Elyashberg、Matthew J. Piggott

  DOI：10.1021/acs.joc.7b00863

  日期：2017.7.21

  antitubercular natural product eucapsitrione, has been synthesized in 43% overall yield and six steps, including a key Suzuki–Miyaura biaryl coupling and a directed remote metalation (DReM)-initiated cyclization. The physical and spectroscopic properties of 1 do not match the data reported for the natural product. At this time there is insufficient information available to enable a structure reassignment

  1,5,7-三羟基-6 H-茚并[1,2 - b ]蒽-6,11,13-三酮（1），被认为是抗结核天然产物桉树三酮，已以43％的总收率合成，六个步骤，包括一个关键的Suzuki-Miyaura联芳基偶联和一个定向的远程金属化（DReM）启动的环化反应。的物理和光谱性质1不匹配报道的天然产物中的数据。此时，没有足够的可用信息来进行结构重新分配。在优化Suzuki-Miyaura偶联过程中，观察到与硼酸酯基团邻位的空前联芳基偶联。已经研究了这种异常反应的范围。
• Sequential directed ortho metalation-boronic acid cross-coupling reactions. A general regiospecific route to oxygenated dibenzo[b,d]pyran-6-ones related to ellagic acid
  作者：B. I. Alo、A. Kandil、P. A. Patil、M. J. Sharp、M. A. Siddiqui、Victor Snieckus、P. D. Josephy

  DOI：10.1021/jo00012a004

  日期：1991.6

  A general regiospecific synthesis of dibenzo[b,d]pyran-6-one derivatives 1a,c and 8a-i related to ellagic acid is described (Scheme I, Table I). The sequence involves directed ortho metalation-boronation of benzamides 4 to give the arylboronic acids 5, which, upon palladium-catalyzed cross-coupling with alkoxybromobenzenes 6 leads to the biphenylamides 7. BBr3 demethylation followed by acid-catalyzed cyclization affords pyranone 8. In this manner, the naturally occurring dibenzopyranones 1a, autumnariol (1c), and the heterocyclic analogue 13 (Scheme III) were efficiently prepared.