tert-butyl 2-(acetoxymethyl)acrylate | 159025-86-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: tert-butyl 2-(acetoxymethyl)acrylate
• 英文别名: tert-Butyl 2-[(acetyloxy)methyl]prop-2-enoate；tert-butyl 2-(acetyloxymethyl)prop-2-enoate
• CAS: 159025-86-2
• 化学式: C₁₀H₁₆O₄
• 分子量: 200.235
• InChiKey: LYCYNSLKFKJEFP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  14
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  tert-butyl 2-(acetoxymethyl)acrylate 在 三乙基硼 、 氧气 、 三正丁基氢锡 、 potassium carbonate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 生成 3-cyclohexyl-2-hydroxymethyl-propionic acid tert-butyl ester
  参考文献：
  名称：

  Enantioselective H-Atom Transfer Reaction:  A Strategy to Synthesize Formaldehyde Aldol Products

  摘要：

  [GRAPHICS]Enantioselective radical alkylation of Baylis-Hillman adducts furnished aldol products in good yield and selectivity. The results illustrate that the selectivity in the hydrogen atom transfer is dependent on the size of the ester substituent, with smaller substituents providing better enantioselectivity.

  DOI：

  10.1021/ol047347h

文献信息

• Enantioselective Rhodium Enolate Protonations. A New Methodology for the Synthesis of β²-Amino Acids
  作者：Mukund P. Sibi、Hiroto Tatamidani、Kalyani Patil

  DOI：10.1021/ol050630b

  日期：2005.6.1

  [reaction: see text] Rhodium-catalyzed conjugate addition of an aryl boronic acid to alpha-methylamino acrylates followed by enantioselective protonation of the oxa-pi-allylrhodium intermediate provides access to aryl-substituted beta(2)-amino acids. The impact of the different variables of the reaction on the levels of enantioselectivity has been assessed.

  [反应：见正文]芳基硼酸向α-甲基氨基丙烯酸酯的铑催化共轭加成，然后氧杂-π-烯丙基铑中间体的对映选择性质子化，提供了被芳基取代的β（2）-氨基酸的途径。已经评估了反应的不同变量对对映选择性水平的影响。
• 1,2-Boron Shifts of β-Boryl Radicals Generated from Bis-boronic Esters Using Photoredox Catalysis
  作者：Daniel Kaiser、Adam Noble、Valerio Fasano、Varinder K. Aggarwal

  DOI：10.1021/jacs.9b07564

  日期：2019.9.11

  accessible position, retaining the more hindered secondary boronic ester. In contrast, we have found that photoredox-catalyzed mono-deboronation generates primary β-boryl radicals that undergo rapid 1,2-boron shift to form thermodynamically favored secondary radicals, allowing for selective transformation of the more hindered boronic ester. The pivotal 1,2-boron shift, which has been demonstrated to be stereoretentive

  1,2-双硼酸酯是多功能中间体，可以快速制备简单的烯烃前体。先前关于其选择性单官能化的报告针对的是最容易接近的位置，保留了受阻更多的仲硼酸酯。相比之下，我们发现光氧化还原催化的单脱硼作用会产生初级 β-硼基自由基，这些自由基经历快速的 1,2-硼转移以形成热力学有利的二级自由基，从而允许更多受阻硼酸酯的选择性转化。已被证明具有立体保留性的关键 1,2-硼位移能够获得广泛的官能化硼酸酯，并已应用于高度非对映选择性断裂和跨环环化反应。此外，
• Catalytic Nucleophilic Allylation Driven by the Water–Gas Shift Reaction
  作者：Scott E. Denmark、Zachery D. Matesich、Son T. Nguyen、Selena Milicevic Sephton

  DOI：10.1021/acs.joc.7b02658

  日期：2018.1.5

  of this reaction from the initial serendipitous discovery to its general synthetic scope is detailed, highlighting the roles of water, CO, and amine in the generation of a more complete catalytic cycle. The use of unsymmetrical allylic pro-nucleophiles was shown to give preferential product formation through the modulation of reaction conditions. Both (E)-cinnamyl acetate and vinyl oxirane were efficiently

  钌与烯丙基亲核试剂的醛催化烯丙基化已被证明是在温和条件下形成碳-碳键的有效方法。此反应从最初的偶然发现到其一般合成范围的演变过程都进行了详细介绍，突出了水，一氧化碳和胺在更完整的催化循环生成中的作用。结果表明，使用不对称的烯丙基亲核亲核试剂可以通过调节反应条件来优先形成产物。（E）-肉桂酸乙酸酯和乙烯基环氧乙烷均有效地用于形成抗支链产物（抗/ syn最高> 20：1 ）和E-线性产物（最高> 20：1 E / s ）Z）分别与芳香族，α，β-不饱和和脂肪族醛形成高选择性。强调了使反应对映选择性的尝试，包括对苯甲醛高达75:25的对映富集。
• Catalytic, Nucleophilic Allylation of Aldehydes with 2-Substituted Allylic Acetates: Carbon–Carbon Bond Formation Driven by the Water–Gas Shift Reaction
  作者：Scott E. Denmark、Zachery D. Matesich

  DOI：10.1021/jo501004j

  日期：2014.7.3

  The ruthenium-catalyzed allylation of aldehydes with allylic acetates has been expanded to incorporate substituents at the 2-position of the allylic components. Allylic acetates bearing a variety of substituents (CO2-t-Bu, COMe, Ph, CH(OEt)2, and Me) undergo high-yielding additions with aromatic, α,β-unsaturated, and aliphatic aldehydes. The conditions of the reaction were found to be mild (75 °C,

  醛与烯丙基乙酸酯的钌催化的烯丙基化已经扩大，以在烯丙基组分的2-位引入取代基。带有多种取代基（CO 2 - t- Bu，COMe，Ph，CH（OEt）2和Me）的烯丙基乙酸酯会与芳香族，α，β-不饱和和脂肪族醛类进行高产率的加成反应。发现反应条件温和（75°C，24–48 h），仅需在40–80 psi的CO下使用2-3 mol％的十二碳三钌催化剂。水和烯丙基的化学计量比发现使用的乙酸盐对反应效率至关重要。
• Synthesis of 2-Benzazepines from Benzylamines and MBH Adducts Under Rhodium(III) Catalysis via C(sp²)–H Functionalization
  作者：Ashok Kumar Pandey、Sang Hoon Han、Neeraj Kumar Mishra、Dahye Kang、Suk Hun Lee、Rina Chun、Sungwoo Hong、Jung Su Park、In Su Kim

  DOI：10.1021/acscatal.7b03812

  日期：2018.1.5

  benzylamines and Morita–Baylis–Hillman (MBH) adducts is described. This protocol provides a facile access to various 2-benzazepine derivatives via the C(sp2)–H activation of N-allylated benzylamines and subsequent intramolecular olefin insertion followed by N-allylation reaction. A range of substrates has been used, and a high level of chemoselectivity as well as functional group tolerance was observed. To gain

  描述了铑（III）催化的市售苄胺与森田-贝利斯-希尔曼（MBH）加合物之间的交叉偶联反应。该方案通过N-烯丙基化的苄胺的C（sp 2）-H活化和随后的分子内烯烃插入以及N-烯丙基化反应，提供了对各种2-苯并ze庚因衍生物的便捷访问。已经使用了多种底物，并且观察到高水平的化学选择性以及官能团耐受性。为了获得这种转换的机械原理，还进行了DFT计算。