2,4,6-tris-(3-nitrophenyl)boroxine | 220210-17-3

• 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: 2,4,6-tris-(3-nitrophenyl)boroxine
• 英文别名: 2-nitrophenyl boroxine；tris(3-nitrophenyl)-1,3,5,2,4,6-trioxatriborinane；tris(3-nitrophenyl)boroxine；2,4,6-tris(3-nitrophenyl)boroxin；Tris-(3-nitro-phenyl)-cyclotriboroxan；Tris-(3-nitro-phenyl)-boroxin；(4-nitrophenyl)3B3O3；Boroxin, tris(3-nitrophenyl)-；2,4,6-tris(3-nitrophenyl)-1,3,5,2,4,6-trioxatriborinane
• CAS: 220210-17-3
• 化学式: C₁₈H₁₂B₃N₃O₉
• 分子量: 446.741
• InChiKey: CAMJLJORSAUJBC-UHFFFAOYSA-N

物化性质

• 沸点：
  538.3±60.0 °C(Predicted)
• 密度：
  1.44±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.96
• 重原子数：
  33
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  165
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  4-异丙基环己-2-烯-1-酮 、 2,4,6-tris-(3-nitrophenyl)boroxine 在 sodium nitrate 、 Pd(MeCN)₄(OTf)₂ 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 72.0h， 以89%的产率得到trans-4-isopropyl-3-(3-nitrophenyl)cyclohexanone
  参考文献：
  名称：

  Mild and Ligand-Free Pd(II)-Catalyzed Conjugate Additions to Hindered γ-Substituted Cyclohexenones

  摘要：

  Ligand-free cationic Pd(II) catalyst with NaNO3 as an additive is a highly active catalytic system for conjugate additions to sterically hindered gamma-substituted cyclohexenones. More challenging gamma gamma- and beta gamma-substrates also react well to produce products with quaternary centers in good dr. The conjugate additions occur in a diastereoselective fashion under mild, practical and air-stable conditions, using readily available commercial reagents.

  DOI：

  10.1021/ol300794a
• 作为产物：
  描述：

  3-硝基苯硼酸 生成 2,4,6-tris-(3-nitrophenyl)boroxine
  参考文献：
  名称：

  Novel Rhodamine Dyes via Suzuki Coupling of Xanthone Triflates with Arylboroxins

  摘要：

  新型罗丹明染料是通过“一锅法”从香豆素前体制备的，该方法涉及香豆素与三氟甲基磺酸酐反应，随后再进行钯介导的铃木耦合，将香豆素三氟甲基磺酸酯与芳基硼烷反应。通过该程序制备了9-(3-或4-羧基苯基)和9-(3-硝基苯基)取代的罗丹明。该方法同样适用于硫香豆素和硒香豆素，但不适用于碲香豆素。

  DOI：

  10.1055/s-0029-1218535

文献信息

• OXIDATIVE COUPLING OF ARYL BORON REAGENTS WITH SP3-CARBON NUCLEOPHILES, AND AMBIENT DECARBOXYLATIVE ARYLATION OF MALONATE HALF-ESTERS VIA OXIDATIVE CATALYSIS
  申请人：The Governors of the University of Alberta

  公开号：US20180186721A1

  公开（公告）日：2018-07-05

  Described herein are methods of oxidative coupling of aryl boron reagents with sp 3 -carbon nucleophiles, and ambient decarboxylative arylation of malonate half-esters via oxidative catalysis.

  本文描述了一种利用氧化偶联芳基硼试剂与sp3-碳亲核试剂进行反应的方法，以及通过氧化催化实现马隆酸半酯的环境脱羧芳基化。
• Ligand- and Base-Free Pd(II)-Catalyzed Controlled Switching between Oxidative Heck and Conjugate Addition Reactions
  作者：Sarah E. Walker、Julian Boehnke、Pauline E. Glen、Steven Levey、Lisa Patrick、James A. Jordan-Hore、Ai-Lan Lee

  DOI：10.1021/ol400539h

  日期：2013.4.19

  solvent allows controlled and efficient switching between oxidative Heck and conjugate addition reactions on cyclic Michael acceptor substrates, catalyzed by a cationic Pd(II) catalyst system. Both reactions are ligand- and base-free and tolerant of air and moisture, and the controlled switching sheds light on some of the factors which favor one reaction over the other.

  简单地改变溶剂即可在阳离子Pd（II）催化剂体系的催化下，在环迈克尔受体底物上的氧化Heck反应和共轭加成反应之间进行受控且有效的转换。两种反应均不含配体和碱，并且耐空气和湿气，并且受控的转换揭示了一些有利于一种反应优于另一种的因素。
• Copper-Mediated Synthesis of Monofluoro Aryl Acetates via Decarboxylative Cross-Coupling
  作者：Anis Fahandej-Sadi、Rylan Lundgren

  DOI：10.1055/s-0036-1588516

  日期：2017.12

  Cu-promoted oxidative cross-coupling of α-fluoromalonate half-esters and aryl boron reagents to deliver mono­fluoro α-aryl acetates under mild conditions (in air at room temperature). The reaction uses a simple, readily available monofluorinated building block to generate arylated compounds with functional groups that are not easily tolerated by existing methods, such as aryl bromides, iodides, pyridines

  我们报告了铜促进的 α-氟丙二酸酯半酯和芳基硼试剂的氧化交叉偶联，以在温和条件下（室温空气中）提供单氟 α-芳基乙酸酯。该反应使用简单、容易获得的单氟化结构单元来生成芳基化化合物，该化合物具有现有方法不易耐受的官能团，例如芳基溴化物、碘化物、吡啶和嘧啶。
• [EN] PROCESS FOR DIRECT AMIDATION OF AMINES VIA RH(I)-CATALYZED ADDITION OF BOROXINES<br/>[FR] PROCÉDÉ D'AMIDATION DIRECTE D'AMINES PAR AJOUT DE BOROXINES CATALYSÉ AU RH(I)
  申请人：AGENCY SCIENCE TECH & RES

  公开号：WO2017044043A1

  公开（公告）日：2017-03-16

  This invention relates to a process for making an amide by directly reacting a ferf-butyloxycarbonyl or carboxybenzyl N substituted amine with a boroxine derivative in the presence of a rhodium(l) catalyst, in the presence of a solvent an optionally in the presence of a base. The process provides means to react protected amines to amides using th boroganic reagent without the deprotection of an amine such that it can be directly converted from protected form in on step, and results in good yields in amide formation even for sterically hindered amines. Potassium fluoride is the preferre base in the reaction run in dioxane. Typical rhodium catalysts that can be used include rhodium(l) complex monomer and dimers such as chloro(1,5-cyclooctadiene) rhodium(l) dimer ("[CI(cod)Rh]2") or bis(1,5-cyclooctadiene)rhodium(l trifluoromethanesulfonate ("(cod)2Rh(OTf)").

  这项发明涉及一种通过在铑（Ⅰ）催化剂存在下，在溶剂的存在下和/或在碱的存在下，直接将ferf-丁氧羰基或羧基苄基N-取代胺与硼氧化物衍生物反应，从而制备酰胺的方法。该过程提供了一种反应受保护胺制备酰胺的手段，使用硼有机试剂而无需去保护胺，使得它可以直接从受保护形式转化为酰胺，即使对于立体位阻胺，也能在酰胺形成中获得良好产率。在二氧六环中运行的反应中，氟化钾是首选碱。可用的典型铑催化剂包括铑（Ⅰ）配合物单体和二聚体，如氯代（1,5-环辛二烯）铑（Ⅰ）二聚体（"[CI(cod)Rh]2"）或双（1,5-环辛二烯）铑（Ⅰ）三氟甲磺酸盐（"(cod)2Rh(OTf)"）。
• Oxidative Coupling of Aryl Boron Reagents with sp³-Carbon Nucleophiles: The Enolate Chan-Evans-Lam Reaction
  作者：Patrick J. Moon、Heather M. Halperin、Rylan J. Lundgren

  DOI：10.1002/anie.201510558

  日期：2016.1.26

  Reported is a versatile new oxidative method for the arylation of activated methylene species. Under mild reaction conditions (RT to 40 °C), Cu(OTf)2 mediates the selective coupling of functionalized aryl boron species with a variety of stabilized sp3‐nucleophiles. Tertiary malonates and amido esters can be employed as substrates to generate quaternary centers. Complementing either traditional cross‐coupling

  报道了一种用于活化的亚甲基物质的芳基化的通用的新氧化方法。在温和的反应条件下（室温至40°C），Cu（OTf）2介导功能化的芳基硼物种与各种稳定的sp 3-亲核试剂的选择性偶联。丙二酸叔丁酯和酰胺基酯可用作底物以生成四元中心。作为传统交叉偶联或S N Ar方案的补充，在卤素亲电试剂（包括芳基溴化物和碘化物）存在下，该转化过程具有化学选择性。带有酰胺基，磺酰基基和膦酰基基团的底物不适合在温和的Hurtley型条件下偶联，是合适的反应伙伴。