tert-butyl benzoyl(methyl)carbamate

• 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: tert-butyl benzoyl(methyl)carbamate
• 英文别名: tert-butyl N-benzoyl-N-methylcarbamate
• 化学式: C₁₃H₁₇NO₃
• 分子量: 235.283
• InChiKey: JGEDXDACSGTBSC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl benzoyl(methyl)carbamate 在 magnesium(II) perchlorate 作用下， 以 乙腈 为溶剂， 反应 20.0h， 以99%的产率得到N-甲基苯甲酰胺
  参考文献：
  名称：

  A highly selective protocol for the deprotection of BOC-protected amides and carbamates

  摘要：

  A BOC-protected amide or carbamate undergoes mild and selective deprotection by treatment with catalytic Mg(ClO4)(2) in acetonitrile. Simple BOC-protected amines are not affected by these conditions.

  DOI：

  10.1016/s0040-4039(00)61498-3
• 作为产物：
  描述：

  苯甲酰氯 在 4-二甲氨基吡啶 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 12.0h， 生成 tert-butyl benzoyl(methyl)carbamate
  参考文献：
  名称：

  铱催化配体控制的远程对位选择性 C-H 活化和扭曲芳族酰胺的硼化

  摘要：

  报道了芳族酰胺的高度对位选择性 C-H 硼基化。对位硼化通过扭曲的芳香酰胺和新设计的配体框架（defa）之间前所未有的底物-配体扭曲进行，这与标准的硼化配体不同。使用这种 defa 配体开发了一种新型催化系统，该配体对一系列芳族酰胺表现出优异的对位选择性。

  DOI：

  10.1002/anie.202203539

文献信息

• Zr‐MOF‐808 as Catalyst for Amide Esterification
  作者：Beatriz Villoria‐del‐Álamo、Sergio Rojas‐Buzo、Pilar García‐García、Avelino Corma

  DOI：10.1002/chem.202003752

  日期：2021.3.8

  esterification. Comparing with previously reported homogeneous and heterogeneous catalysts, Zr‐MOF‐808‐P can promote the reaction for a wide range of primary, secondary and tertiary amides with n‐butanol as nucleophilic agent. Different alcohols have been employed in amide esterification with quantitative yields. Moreover, the catalyst acts as a heterogeneous catalyst and could be reused for at least five

  在这项工作中，已发现锆基金属有机框架Zr-MOF-808-P是一种高效，通用的酰胺酯化催化剂。与以前报道的均相和非均相催化剂相比，Zr-MOF-808-P可以促进以正丁醇为亲核试剂的多种伯，仲和叔酰胺的反应。在酰胺酯化中已采用不同的醇以定量的产率。此外，该催化剂用作非均相催化剂，并且可以重复使用至少五个连续的循环。通过原位FTIR光谱技术和动力学研究在Zr-MOF-808分子水平上研究了酰胺酯化机理。
• TMSOTf-mediated approach to 1,3-oxazin-2-one skeleton through one-pot successive reduction-[4 + 2] cyclization process of imides with ynamides
  作者：Chen-Chen Zhang、Zhi-Peng Huo、Mei-Lin Tang、Yong-Xi Liang、Xun Sun

  DOI：10.1016/j.tetlet.2021.152946

  日期：2021.3

  A one-pot approach to access functionalized 1,3-oxazin-2-one skeleton has been developed through successive reduction and subsequent [4 + 2] cyclization process of N-Boc lactams with ynamides by TMSOTf. As a result, a number of five to seven membered ring fused bicyclic [1,2-c][1], [3]oxazin-1-ones 12a-m and tricyclic derivatives 13a-f were obtained in moderate to excellent yields with excellent regioselectivities

  通过连续还原和随后通过TMSOTf还原N- Boc内酰胺和酰胺类化合物的[4 + 2]环化过程，已经开发出了一种通过一锅法获得功能化的1,3-恶嗪-2-酮骨架的方法。结果，以中等至极好的收率得到了许多五至七元环稠合的双环[1,2-c] [1]，[3]恶嗪-1-酮12a-m和三环衍生物13a-f。极好的区域选择性。而且，直链N - Boc酰胺9a-e也适合于该转化，并且容易以中等产率以优异的区域选择性获得期望的3,4-二氢-1,3-恶嗪-2-酮14a-m。
• Pd–PEPPSI: a general Pd–NHC precatalyst for Buchwald–Hartwig cross-coupling of esters and amides (transamidation) under the same reaction conditions
  作者：Shicheng Shi、Michal Szostak

  DOI：10.1039/c7cc06186b

  日期：——

  Amides are of fundamental interest in many fields of chemistry involving organic synthesis, chemical biology and biochemistry. Here, we report the first catalytic Buchwald–Hartwig coupling of both common esters and amides by highly selective C(acyl)–X (X = O, N) cleavage to rapidly access aryl amide functionality via a cross-coupling strategy. Reactions are promoted by versatile, easily prepared, well-defined

  酰胺在涉及有机合成，化学生物学和生物化学的许多化学领域中具有根本的意义。在这里，我们通过高度选择性C（酰基）-X（X = O，N）裂解以快速访问芳酰胺官能报告这两个共同酯和酰胺的第一催化的Buchwald-Hartwig偶联经由交叉耦合策略。多功能，易于制备的，定义明确的Pd-PEPPSI型预催化剂促进了反应，并以良好的收率和优异的产率进行，并且对酰基键的裂解具有出色的化学选择性。该方法是用户友好的，因为它使用了市售的，对水分和空气稳定的预催化剂。值得注意的是，我们首次展示了在相同反应条件下的选择性C（酰基）-N和C（酰基）-O裂解/布赫瓦尔德-哈特维格胺胺化反应，可通过避免限制于特定的酰基金属前体来简化酰胺的合成。引起广泛兴趣的是，这项研究为使用定义明确的Pd（II）-NHC带有吡啶“扔掉”配体的前催化剂家族开辟了大门，后者可用于对稳定的羧酸衍生物进行选择性C（酰基）胺化。
• Conversion of amides to esters by the nickel-catalysed activation of amide C–N bonds
  作者：Liana Hie、Noah F. Fine Nathel、Tejas K. Shah、Emma L. Baker、Xin Hong、Yun-Fang Yang、Peng Liu、K. N. Houk、Neil K. Garg

  DOI：10.1038/nature14615

  日期：2015.8

  Although enzymes are able to cleave amide bonds in nature, it is difficult to selectively break the carbon–nitrogen bond of an amide using synthetic chemistry; now the activation and cleavage of these bonds using nickel catalysts is used to convert amides to esters. Although enzymes are able to cleave amide bonds in nature, it is difficult to selectively break the carbon–nitrogen bond of an amide using synthetic chemistry. In this paper the authors demonstrate that amide C–N bonds can be activated and cleaved using nickel catalysts. They used this methodology to convert amides to esters, which is a challenging and underdeveloped transformation. Amides are common functional groups that have been studied for more than a century1. They are the key building blocks of proteins and are present in a broad range of other natural and synthetic compounds. Amides are known to be poor electrophiles, which is typically attributed to the resonance stability of the amide bond1,2. Although amides can readily be cleaved by enzymes such as proteases3, it is difficult to selectively break the carbon–nitrogen bond of an amide using synthetic chemistry. Here we demonstrate that amide carbon–nitrogen bonds can be activated and cleaved using nickel catalysts. We use this methodology to convert amides to esters, which is a challenging and underdeveloped transformation. The reaction methodology proceeds under exceptionally mild reaction conditions, and avoids the use of a large excess of an alcohol nucleophile. Density functional theory calculations provide insight into the thermodynamics and catalytic cycle of the amide-to-ester transformation. Our results provide a way to harness amide functional groups as synthetic building blocks and are expected to lead to the further use of amides in the construction of carbon–heteroatom or carbon–carbon bonds using non-precious-metal catalysis.

  尽管酶能够在自然界中断裂酰胺键，但利用合成化学选择性地打破酰胺的碳—氮键却很困难；现在，使用镍催化剂激活和断裂这些键被用于将酰胺转化为酯。本文作者证明，酰胺C—N键可以使用镍催化剂激活和断裂。他们利用这种方法将酰胺转化为酯，这是一种具有挑战性且发展不足的转化。酰胺是一类常见的官能团，一个多世纪以来一直被研究。它们是蛋白质的关键构建模块，存在于广泛的天然和合成化合物中。酰胺被认为是一种差的亲电试剂，这通常归因于酰胺键的共振稳定性。尽管酶如蛋白酶可以轻易地断裂酰胺，但利用合成化学选择性地打破酰胺的碳—氮键却很困难。在这里，我们证明酰胺碳—氮键可以使用镍催化剂激活和断裂。我们利用这种方法将酰胺转化为酯，这是一种具有挑战性且发展不足的转化。反应方法在极其温和的反应条件下进行，并避免了使用大量过量的醇亲核试剂。密度泛函理论计算为酰胺到酯转化的热力学和催化循环提供了见解。我们的结果为利用酰胺官能团作为合成构建块提供了一种方法，并有望进一步在非贵金属催化的碳—杂原子或碳—碳键构建中使用酰胺。
• Hydrogen-bond-assisted transition-metal-free catalytic transformation of amides to esters
  作者：Changyu Huang、Jinpeng Li、Jiaquan Wang、Qingshu Zheng、Zhenhua Li、Tao Tu

  DOI：10.1007/s11426-020-9883-3

  日期：2021.1

  interest in synthetic chemistry, biological process and pharmaceutical industry. Transition-metal, luxury ligand or excess base were always vital to the transformation. Here, we developed a transition-metal-free hydrogen-bond-assisted esterification of amides with only catalytic amount of base. The proposed crucial role of hydrogen bonding for assisting esterification was supported by control experiments

  酰胺CN的裂解在合成化学，生物过程和制药工业中引起了广泛的兴趣。过渡金属，豪华配体或过量的碱对转化始终至关重要。在这里，我们开发了仅催化量碱的无过渡金属的氢键助酰胺化酰胺。控制实验，密度泛函理论（DFT）计算和动力学研究支持了氢键在协助酯化中所起的关键作用。除了广泛的底物范围和出色的官能团耐受性外，该碱催化方案还补充了传统的过渡金属催化的酰胺酯化反应，并为有机合成和制药行业催化裂解酰胺CN键提供了新途径。