1-Benzamino-hexan-5-on | 92040-47-6

• 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: 1-Benzamino-hexan-5-on
• 英文别名: N-(5-oxohexyl)benzamide
• CAS: 92040-47-6
• 化学式: C₁₃H₁₇NO₂
• 分子量: 219.283
• InChiKey: LDMLOLVDVJBTQH-UHFFFAOYSA-N

物化性质

• 熔点：
  75-76 °C
• 沸点：
  444.8±28.0 °C(Predicted)
• 密度：
  1.047±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  46.2
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-Benzamino-hexan-5-on 在 盐酸羟胺 、 水 、 sodium carbonate 作用下， 生成 N-(5-hydroxyimino-hexyl)-benzamide
  参考文献：
  名称：

  Lipp, Justus Liebigs Annalen der Chemie, 1896, vol. 289, p. 229

  摘要：

  DOI：
• 作为产物：
  描述：

  2-甲基哌啶 在 tris(triphenylphosphine)ruthenium(II) chloride 盐酸 、 4-二甲氨基吡啶 、 sodium nitrite 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 22.08h， 生成 1-Benzamino-hexan-5-on
  参考文献：
  名称：

  Exploratory Synthetic Studies of the α-Methoxylation of Amides via Cuprous Ion-Promoted Decomposition of o-Diazobenzamides

  摘要：

  A convenient nonelectrochemical amide oxidation method has been developed. The process involves a cuprous ion-promoted decomposition of o-diazobenzamides like 4, generated in situ from the corresponding o-aminobenzamides, to give N-acyliminium ion intermediate 9 via a 1,5-H-atom transfer, followed by metal-catalyzed oxidation of the resulting alpha-amidyl radical. The transformation produces alpha-methoxybenzamides 15 in good yields. An attempt was made to apply this oxidation method to a total synthesis of the alkaloid (-)-anisomycin (16). Scalemic o-aminobenzamide pyrrolidine derivatives 18a/18b underwent oxidation to give a-methoxylated amide substrates 19a/ 19b, respectively, in good yields. However, alkylation of the N-acyliminium intermediate 20 with (p-methoxybenzyl)magnesium chloride gave the undesired anti-compounds 22a/22b as the major products. The amide oxidation exhibits good regioselectivity with many unsymmetrical 2-substituted piperidine and pyrrolidine systems. In general, it appears that the larger the C-2 substituent, the greater the methylene/methine H-atom abstraction ratio. A mechanistic rationale for this selectivity is suggested based upon amide rotamer populations. An extension of this methodology can be used to conduct two sequential amide oxidations using readily prepared 2-amino-6-nitrobenzamides such as 68 and 69.

  DOI：

  10.1021/jo961529a

文献信息

• Mild chemo-selective hydration of terminal alkynes catalysed by AgSbF₆
  作者：Mathieu Bui The Thuong、André Mann、Alain Wagner

  DOI：10.1039/c1cc12928g

  日期：——

  The chemo-selective hydration of a wide range of non-activated terminal alkynes catalysed by AgSbF6 under mild conditions is reported.

  报道了一种在温和条件下，由AgSbF6催化的广泛范围的未活化末端炔烃的选择性氢化反应。
• Thioether-Directed NiH-Catalyzed Remote γ-C(sp³)–H Hydroamidation of Alkenes by 1,4,2-Dioxazol-5-ones
  作者：Bingnan Du、Yuxin Ouyang、Qishu Chen、Wing-Yiu Yu

  DOI：10.1021/jacs.1c05834

  日期：2021.9.22

  amidation of unactivated alkenes. Due to the preference for five-membered nickelacycle formation, the chain-walking isomerization initiated by the NiH insertion to an alkene can be terminated at the γ-methylene site remote from the alkene moiety. By employing 2,9-dibutyl-1,10-phenanthroline (L4) as the ligand and dioxazolones as the reagent, the amidation occurs at the γ-C(sp3)–H bonds to afford the amide

  开发了一种 NiH 催化的硫醚导向的环金属化策略，以实现未活化烯烃的远程亚甲基 C-H 键酰胺化。由于优先形成五元镍环，由 NiH 插入烯烃引发的链式异构化可以在远离烯烃部分的 γ-亚甲基位点终止。通过使用 2,9-二丁基-1,10-菲咯啉 ( L4 ) 作为配体和二恶唑酮作为试剂，酰胺化发生在 γ-C(sp 3 )-H 键上，以提供高达 90% 的酰胺产物产量（> 40 个例子）具有显着的区域选择性（高达 24:1 rr）。
• Photocatalysis in Aqueous Micellar Media Enables Divergent C–H Arylation and <i>N</i>-Dealkylation of Benzamides
  作者：Martyna Cybularczyk-Cecotka、Jędrzej Predygier、Stefano Crespi、Joanna Szczepanik、Maciej Giedyk

  DOI：10.1021/acscatal.2c00468

  日期：2022.3.18

  Photocatalysis in aqueous micellar media has recently opened wide avenues to activate strong carbon–halide bonds. So far, however, it has mainly explored strongly reducing conditions, restricting the available chemical space to radical or anionic reactivity. Here, we demonstrate a controllable, photocatalytic strategy that channels the reaction of chlorinated benzamides via either a radical or a cationic

  最近，水性胶束介质中的光催化为激活强碳卤键开辟了广阔的途径。然而，到目前为止，它主要探索了强烈的还原条件，将可用的化学空间限制为自由基或阴离子反应性。在这里，我们展示了一种可控的光催化策略，该策略通过自由基或阳离子途径引导氯化苯甲酰胺的反应，从而实现化学发散的 C-H 芳基化或N-脱烷基化。该催化系统在温和的条件下运行，亚甲基蓝作为光催化剂，蓝色 LED 作为光源。介绍了决定底物反应性、选择性和初步机理研究的因素。
• A convenient synthetic method for amide oxidation
  作者：Gyoonhee Han、Matthias C McIntosh、Steven M Weinreb

  DOI：10.1016/s0040-4039(00)78191-3

  日期：1994.8

  Diazotization of o-aminobenzamides in methanol in the presence of a catalytic amount of CuCl affords α-methoxybenzamides in good yields.

  在催化量的CuCl存在下，将邻氨基苯甲酰胺在甲醇中重氮化，可得到高产率的α-甲氧基苯甲酰胺。
• AN ANTIMALARIAL ALKALOID FROM HYDRANGEA. XV. SYNTHESIS OF 5-, 6-, 7-, AND 8-DERIVATIVES WITH TWO IDENTICAL SUBSTITUENTS
  作者：B. R. BAKER、ROBERT E. SCHAUB、JOSEPH P. JOSEPH、FRANCIS J. McEVOY、JAMES H. WILLIAMS

  DOI：10.1021/jo01135a015

  日期：1952.1