2-(3'-azidopropyl)-1-cyclohexanone | 137125-28-1

• 分子结构分类: 有机化合物 - 有机1,3-偶极化合物 - 烯丙基型1,3-偶极有机化合物
• 英文名称: 2-(3'-azidopropyl)-1-cyclohexanone
• 英文别名: 2-(3'-azidopropyl)cyclohexanone；2-(3-azidopropyl)cyclohexanone；2-(3-Azidopropyl)cyclohexan-1-one
• CAS: 137125-28-1
• 化学式: C₉H₁₅N₃O
• 分子量: 181.238
• InChiKey: AYPVAWNVYZGCPF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  31.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(3'-azidopropyl)-1-cyclohexanone 在 六氟异丙醇 、 四氯化钛 作用下， 以 二氯甲烷 为溶剂， 反应 20.0h， 以94%的产率得到六氢-1H-吡咯并[1,2-A]氮杂卓-5(6H)-酮
  参考文献：
  名称：

  克服分子内施密特反应催化中的产物抑制

  摘要：

  报道了使用亚化学计量量的催化剂进行烷基叠氮化物和酮的分子内施密特反应的方法。经过广泛筛选，发现使用强氢键供体溶剂六氟-2-丙醇与低催化剂负载量一致，其范围从有利底物的 2.5 mol% 到更困难情况的 25 mol%。描述了反应优化、广泛的底物范围和这种改进版反应的初步机理研究。

  DOI：

  10.1021/ja402848c
• 作为产物：
  描述：

  环己酮二甲基腙 在 sodium azide 、 硫酸 、 lithium diisopropyl amide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.5h， 生成 2-(3'-azidopropyl)-1-cyclohexanone
  参考文献：
  名称：

  Intramolecular Schmidt Reactions of Alkyl Azides with Ketones: Scope and Stereochemical Studies

  摘要：

  The intramolecular Schmidt reaction of alkyl azides and ketones has been demonstrated. The reaction is proposed to occur via initial attack of an azide on a ketone activated by a variety of protic or Lewis acids, including trifluoroacetic acid, titanium tetrachloride, and others. The resulting azidohydrin undergoes a direct rearrangement to afford the product amide and molecular nitrogen. When cyclic ketones are used, fused bicyclic lactams of types encountered in a wide variety of natural products are obtained. Although the distance allowed between the carbonyl group and the alkyl azide is quite restricted, the reaction is general with respect to the ketone component, including acyclic ketones and cyclic substrates ranging from standard to large ring sizes. The reaction also succeeds with aldehydes, although elimination or hydride migration products compete. In several cases examined, the reaction was found to proceed with retention of configuration at the migrating carbon. Competing reactions with beta-diketones and alpha,beta-unsaturated ketones were found to predominate over ring expansion.

  DOI：

  10.1021/ja00147a006

文献信息

• In Situ Generation and Intramolecular Schmidt Reaction of Keto Azides in a Microwave-Assisted Flow Format
  作者：Thomas O. Painter、Paul D. Thornton、Mario Orestano、Conrad Santini、Michael G. Organ、Jeffrey Aubé

  DOI：10.1002/chem.201100768

  日期：2011.8.22

  Go with the flow! A method for conversion of keto halides to lactams by means of sequential azidation and intramolecular Schmidt reaction in a combined flow format is described (see scheme; MWI=microwave irradiation, TFA=trifluoroacetic acid).

  顺其自然！描述了通过连续叠氮化和分子内施密特反应以组合流动形式将酮卤化物转化为内酰胺的方法（参见方案；MWI=微波辐射，TFA=三氟乙酸）。
• A Schmidt route to 1-azabicyclo[x.y.0]alkanes: a comparison of carbocation stabilizing groups
  作者：William H Pearson、Rajesh Walavalkar

  DOI：10.1016/s0040-4020(01)00353-2

  日期：2001.6

  The intramolecular Schmidt reactions of tertiary alkyl, tertiary benzylic, tertiary propargylic, and tertiary allylic carbocations with tethered azides are reported. Using product analysis and deuterium labeling studies, the role of cation rearrangement prior to Schmidt reaction is reported.

  据报道，叔烷基，叔苄基，叔炔丙基和叔烯丙基碳阳离子与拴系叠氮化物的分子内施密特反应。使用产物分析和氘标记研究，报道了施密特反应之前阳离子重排的作用。
• Intramolecular Schmidt reactions of alkyl azides with ketals and enol ethers
  作者：Craig J. Mossman、Jeffrey Aubé

  DOI：10.1016/0040-4020(96)00037-3

  日期：1996.3

  The ketals or enol ethers of 1,5-azidoketones were converted into lactams using a two-stage process. Treatment of the ketals and enol ethers with acid (trifluoroacetic acid, triflic acid, or trimethylsilyl triflate) afforded an oxonium ion which reacted with the tethered azide to give a 1,1-azido-alkoxy intermediate. Bond reorganization led to an iminium ether that was reacted with sodium iodide in

  使用两步法将1，5-叠氮酮的缩酮或烯醇醚转化为内酰胺。用酸（三氟乙酸，三氟甲磺酸或三甲基三氟甲磺酸酯）处理缩酮和烯醇醚，得到氧鎓离子，其与束缚的叠氮化物反应，得到1，1-叠氮基-烷氧基中间体。键的重组产生了亚胺醚，该亚胺醚与碘化钠在丙酮中反应以暴露出酰胺产物。据报道，使用二甲基或二乙基缩酮，有七个分子内实例的收率在68％至≥95％之间。还描述了使用1，3-二氧戊环的尝试和一个分子间的实例。
• SYNTHESIS OF AN N-SUBSTITUTED LACTAM USING AN INTRAMOLECULAR SCHMIDT REACTION: FORMATION OF 2,3,11,11a-TETRAHYDRO-1H-BENZO[d]PYRROLO[1,2-a]AZEPIN-5(6H)-ONE
  作者：Grecian, Scott、Aubé, Jeff、Zhao, Dalian、Mathre, David J.

  DOI：10.15227/orgsyn.084.0347

  日期：——
• Intramolecular Schmidt reaction of alkyl azides
  作者：Jeffrey Aube、Gregory L. Milligan

  DOI：10.1021/ja00023a065

  日期：1991.11