(E)-3-cyclohexyl-N,N-diethyl-2-methylpropenamide | 368425-56-3

• 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: (E)-3-cyclohexyl-N,N-diethyl-2-methylpropenamide
• 英文别名: (E)-3-cyclohexyl-N,N-diethyl-2-methylprop-2-enamide
• CAS: 368425-56-3
• 化学式: C₁₄H₂₅NO
• 分子量: 223.359
• InChiKey: NSAFKMFLXLWXGY-VAWYXSNFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  二碘甲烷 、 (E)-3-cyclohexyl-N,N-diethyl-2-methylpropenamide 在 三氢化钐 作用下， 以 四氢呋喃 为溶剂， 反应 10.0h， 生成 (+/-)-(1S,2R)-2-cyclohexyl-N,N-diethyl-1-methylcyclopropanocarboxamide
  参考文献：
  名称：

  Sequenced elimination–reduction and elimination–cyclopropanation reactions of 2,3-epoxyamides promoted by samarium diiodide. Synthesis of 2,3-dideuterioamides and cyclopropanamides

  摘要：

  An easy and general sequenced elimination/reduction or elimination/cyclopropanation process promoted by samarium diiodide or/and CH2I2/Sm provide an efficient method for synthesising 2,3-dideuterioamides 3 or cyclopropanamides 8, respectively. The transformations take place in high yields and with total or high selectivity from the easily available 2,3-epoxyamides. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.07.051
• 作为产物：
  描述：

  N,N-二乙基-2-氯丙酰胺 在 六甲基磷酰三胺 、 samarium diiodide 、 双(三甲基硅烷基)氨基钾 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 0.67h， 生成 (E)-3-cyclohexyl-N,N-diethyl-2-methylpropenamide
  参考文献：
  名称：

  SmI2/HMPA促进α,β-环氧酰胺合成具有高非对映选择性的脂肪族(E)-α,β-不饱和酰胺

  摘要：

  通过使用二碘化钐和 HMPA 合成脂肪族 (E)-α,β-不饱和酰胺 2，其中 C=C 键被二或三取代。起始化合物 1 很容易通过相应的 α-氯酰胺的烯醇锂或烯醇钾与醛反应来制备。提出了一种解释这一过程的机制。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)

  DOI：

  10.1002/ejoc.200300641

文献信息

• Stereospecific Cyclopropanation of Highly Substituted C−C Double Bonds Promoted by CrCl₂. Stereoselective Synthesis of Cyclopropanecarboxamides and Cyclopropyl Ketones
  作者：José M. Concellón、Humberto Rodríguez-Solla、Carmen Méjica、Elena G. Blanco

  DOI：10.1021/ol070896d

  日期：2007.8.1

  (Z)-alpha,beta-enamides in which the C-C double bond is di-, tri-, or tetrasubstituted. In all cases the process is completely stereospecific and only a single diastereoisomer is obtained. In addition, cyclopropyl ketones were readily prepared by reaction of the cyclopropanecarboxamides (derived from morpholine) obtained with a range of organolithium compounds. A mechanism has been proposed to explain the cyclopropanation

  我们在这里描述了CrCl（2）促进的α，β-不饱和酰胺的环丙烷化。该反应可以在其中CC双键被二，三或四取代的（E）-或（Z）-α，β-烯酰胺上进行。在所有情况下，该过程都是完全立体定向的，并且仅获得单个非对映异构体。另外，通过使所获得的环丙烷甲酰胺（衍生自吗啉）与一定范围的有机锂化合物反应，可以容易地制备环丙基酮。已经提出了解释环丙烷化反应的机理。
• Manganese-Promoted Regioselective Ring-Opening of 2,3-Epoxy Acid Derivatives: A New Route to α-Hydroxy Acid Derivatives
  作者：José M. Concellón、Pablo L. Bernad、Humberto Rodríguez-Solla、Pamela Díaz

  DOI：10.1002/adsc.200900257

  日期：2009.9

  amides as starting materials, the corresponding 3-aryl-2-hydroxy amides in enantiopure form are also available. Some synthetic applications of selected examples of 3-aryl-2-hydroxy carboxylic acid derivatives are shown. A mechanism has been proposed to explain this novel reaction.

  描述了一种简单而通用的方法，该方法涉及由活性锰促进的从容易获得的2，3-环氧酰胺或酯合成3-芳基-2-羟基酰胺或具有总区域选择性的酯。利用对映纯的环氧酰胺作为起始原料，也可获得对映纯的相应的3-芳基-2-羟基酰胺。显示了3-芳基-2-羟基羧酸衍生物的选定实例的一些合成应用。已经提出了一种机制来解释这种新颖的反应。
• Highly Stereoselective Halocyclopropanation of α,β-Unsaturated Amides
  作者：José M. Concellón、Humberto Rodríguez-Solla、Elena G. Blanco、María A. Villa-García、Noemí Alvaredo、Santiago García-Granda、M. Rosario Díaz

  DOI：10.1002/adsc.200900331

  日期：2009.9

  A convenient highly stereoselective synthesis of chloro- and bromocyclopropanamides from di- tri- or tetrasubstituted (E)- or (Z)-α,β-unsaturated amides with total or high stereoselectivity promoted by chromium dichloride or dibromide is described. The transformation of chlorocyclopropanamides into the corresponding ketones or amines is also reported. A mechanism to explain these transformations is

  从二-三-或四取代的（氯-和bromocyclopropanamides的一种方便的高度立体选择性合成ë） -或（Ž）-α，β -与由二氯化铬或二溴化物促进总或高立体选择性不饱和酰胺进行说明。还报道了氯环丙烷酰胺向相应的酮或胺的转化。提出了一种解释这些转换的机制。
• Synthesis of (E)-α,β-Unsaturated Amides with High Selectivity by Using Samarium Diiodide
  作者：José M. Concellón、Juan A. Pérez-Andrés、Humberto Rodríguez-Solla

  DOI：10.1002/1521-3765(20010716)7:14<3062::aid-chem3062>3.0.co;2-f

  日期：2001.7.16

  Stereoselective beta -elimination of 2-chloro-3-hydroxyamides 1 is achieved by using samarium diiodide to yield alpha,beta -unsaturated amides 2, in which the C=C bond is di- tri-, or tetrasubstituted. The starting compounds a are easily prepared by reaction of the corresponding lithium enolates of alpha -chloroamides with aldehydes or ketones at -78 degreesC. The influence of the reaction conditions and the structure of the starting compounds on the stereoselectivity of the beta -elimination reaction is also discussed.
• Complete Stereospecific Cyclopropanation of α,β-Unsaturated Amides Promoted by Sm/CH2I2 We acknowledge financial support from II Plan Regional de Investigación del Principado de Asturias (PB-EXP01-11) and Ministerio de Ciencia y Tecnología (BQU2001-3807). We thank Dr. Francisco J. González for valuable discussions and Robin Walker for revising the English manuscript. J.M.C. thanks Carmen Fernández-Flórez for her time. H.R.S. thanks Principado de Asturias for a predoctoral fellowship.
  作者：José M. Concellón、Humberto Rodríguez-Solla、Cecilia Gómez

  DOI：10.1002/1521-3773(20020603)41:11<1917::aid-anie1917>3.0.co;2-1

  日期：2002.6.3