endo-Tricyclo<6.2.1.0^2,7>-8-undecen-2-one

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: endo-Tricyclo<6.2.1.0^2,7>-8-undecen-2-one
• 英文别名: endo-tricyclo[6.2.1.0(2,7)]undec-9-en-3-one；(1S,2R,7S,8R)-tricyclo[6.2.1.02,7]undec-9-en-3-one
• 化学式: C₁₁H₁₄O
• 分子量: 162.232
• InChiKey: YINCMLNASBORJF-QCBRBAQYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  endo-Tricyclo<6.2.1.0^2,7>-8-undecen-2-one 以 苯 为溶剂， 反应 48.0h， 以80%的产率得到2-oxapentacyclo[6.4.0.0(1,4).0(3,7).0(5,9)]dodecane
  参考文献：
  名称：

  紧张到极限：当环丁基部分在光生氧杂环丁烷的质子裂解开环中成为热力学汇

  摘要：

  由环状二烯和烯酮的 Diels-Alder 加合物光化学生成的应变多环氧杂环丁烷在质子开环条件下发生深度骨架重排，可快速获得氯醇和其他具有独特骨架拓扑结构的产物。

  DOI：

  10.1021/ol101297b
• 作为产物：
  描述：

  Methyl 6-chloro-2-hexynoate 在 tris(dibenzoylmethano)iron(III) samarium diiodide 、 bis(cyclohexanyl)borane 、 氯化二乙基铝 、 sodium iodide 作用下， 以 四氢呋喃 、 丙酮 、 甲苯 为溶剂， 反应 13.5h， 生成 endo-Tricyclo<6.2.1.0^2,7>-8-undecen-2-one
  参考文献：
  名称：

  Intramolecular nucleophilic acyl substitution reactions of halo-substituted esters and lactones. New applications of organosamarium reagents

  摘要：

  Intramolecular nucleophilic acyl substitution reactions involving a broad range of halo substituted carboxylic acid derivatives have been accomplished in excellent yield employing samarium(II) iodide as the reductive coupling agent. Although particular substrates cyclized most effectively in THF in the presence of tripiperidinophosphine oxide, carboxylic acid esters, the focus of this report, cyclize equally well without such an additive in the presence of a catalytic quantity of iron(III) complexes. Thus a comprehensive series of halo substituted esters were cyclized in excellent yield to the corresponding 4-, 5-, and 6-membered carbocycles. The reaction is extremely mild and selective as demonstrated by experiments wherein alkyl chlorides, acetals, and olefins remain completely intact under the reaction conditions. In addition to introducing a convenient procedure for preparing stereodefined spirocyclic systems, a new ring expansion sequence has been developed that appears extremely general for the preparation of various ring systems.

  DOI：

  10.1021/jo00077a053

文献信息

• Silylium Ion-Catalyzed Challenging Diels–Alder Reactions: The Danger of Hidden Proton Catalysis with Strong Lewis Acids
  作者：Ruth K. Schmidt、Kristine Müther、Christian Mück-Lichtenfeld、Stefan Grimme、Martin Oestreich

  DOI：10.1021/ja211856m

  日期：2012.3.7

  Proton-catalyzed Diels-Alder reactions are not well-documented in the literature, and a representative survey employing TfOH is included here. The outcome of these catalyses is compared with our silylium ion-catalyzed Diels-Alder reactions, thereby clearly corroborating that hidden Brønsted acid catalysis is not operating with our Lewis acid. Several simple-looking but challenging Diels-Alder reactions with exceptionally

  三配位硅阳离子显着的路易斯酸性导致路易斯酸催化异常反应。然而，强路易斯酸催化的缺点是，它们确实有可能通过各种机制介导质子的形成，因此释放的布朗斯台德酸甚至可能超过路易斯酸作为真正的催化剂。这是一个经常被忽视的点。消除隐藏的质子催化途径的一种方法是添加质子清除剂。由我们的二茂铁稳定的硅阳离子催化的低温 Diels-Alder 反应就是这样一种情况，必须仔细检查质子催化的可能性。然而，添加常见的受阻碱 2,6-二-叔丁基吡啶导致缓慢分解并形成相应的吡啶鎓离子。观察到硅阳离子的定量去质子化与更碱性的 (Mes)(3)P 以产生鏻离子。氘标记实验证实质子是从二茂铁骨架中提取的。在量子化学计算的基础上提出了一种合理的质子形成机制。诚然，这是一个特殊情况，但表明必须仔细审查质子清除剂的使用，因为质子的形成可能会被激发而不是被阻止。质子催化的 Diels-Alder 反应在文献中没有得到很好的记录，此处包含使用
• Experimental Diels-Alder Reactivities of Cycloalkenones and Cyclic Dienes Explained through Transition-State Distortion Energies
  作者：Robert S. Paton、Seonah Kim、Audrey G. Ross、Samuel J. Danishefsky、K. N. Houk

  DOI：10.1002/anie.201103998

  日期：2011.10.24

  Quantum chemical calculations are used to investigate the experimentally measured reactivities of cyclic dienes and cycloalkenones in the Diels–Alder reaction. The interaction energies (red) are nearly constant; differences arise in changes in distortion energies of both dienophile (blue) and diene (green; see picture, Ea=activation energy; values in kcal mol−1).

  量子化学计算用于研究Diels-Alder反应中环二烯和环烯酮的反应活性。相互作用能（红色）几乎恒定；亲二烯体（蓝色）和二烯（绿色；见图片，E a =活化能； kcal mol -1的值）的变形能变化会产生差异。
• Chiral Oxazaborolidine−Aluminum Bromide Complexes Are Unusually Powerful and Effective Catalysts for Enantioselective Diels−Alder Reactions
  作者：Duan Liu、Eda Canales、E. J. Corey

  DOI：10.1021/ja068637r

  日期：2007.2.1

  acid catalyst than protonated 1 (i.e., 2) for enantioselective Diels−Alder reactions. Only 4 mol % of catalyst 3 is required to achieve yields and enantiomeric purities of 90% over a broad range of achiral dienes and dienophiles. The ligand from which 3 is derived can be recovered easily and with high efficiency. The method is illustrated by 22 examples.

  用 AlBr3 处理手性 oxazaborolidine 1 生成 1:1 配合物 3，这是一种比质子化 1（即 2）更有效的路易斯酸催化剂，用于对映选择性 Diels-Alder 反应。仅需要 4 mol% 的催化剂 3 即可在广泛的非手性二烯和亲二烯体上实现 90% 的产率和对映体纯度。衍生出 3 的配体可以轻松高效地回收。该方法通过 22 个示例进行说明。
• The First General Enantioselective Catalytic Diels−Alder Reaction with Simple α,β-Unsaturated Ketones
  作者：Alan B. Northrup、David W. C. MacMillan

  DOI：10.1021/ja017641u

  日期：2002.3.1

  The first general approach to enantioselective catalysis of the Diels−Alder reaction with simple ketone dienophiles has been accomplished. The use of iminium catalysis has enabled enantioselective access to a fundamental Diels−Alder reaction variant that has previously been unavailable using chiral Lewis acid catalysis. A new chiral amine catalyst has been developed that allows a variety of monodentate

  使用简单的酮亲二烯体对 Diels-Alder 反应进行对映选择性催化的第一种通用方法已经完成。亚胺催化的使用使对映选择性获得了以前使用手性路易斯酸催化无法获得的基本 Diels-Alder 反应变体。已经开发出一种新的手性胺催化剂，可以使各种单齿环状和无环酮成功参与对映选择性 [4 + 2] 环加成。广泛的环状和非环状二烯底物也可以用于这种新的有机催化转化。提供了一个计算模型，该模型与对本研究过程中进行的所有反应所观察到的对映诱导意义一致。
• Enantioselective transformation of alpha,beta-unsaturated ketones using chiral organic catalysts
  申请人：——

  公开号：US20030220507A1

  公开（公告）日：2003-11-27

  Nonmetallic organic catalysts are provided that facilitate the enantioselective reaction of &agr;,&bgr;-unsaturated ketones. The catalysts are chiral imidazolidinone compounds having the structure of formula (IIA) or (IIB) 1 or are acid addition salts thereof, wherein, in one preferred embodiment, R 1 is C 1 -C 6 alkyl, R 2 is phenyl or 2-methylfuryl, R 3 and R 4 are hydrogen, and R 5 is phenyl optionally substituted with 1 or 2 substituents selected from the group consisting of halo, hydroxyl, and C 1 -C 6 alkyl The chiral imidazolidinones are useful in catalyzing a wide variety of reactions, including cycloaddition reactions, Friedel-Crafts alkylation reactions, and Michael additions.

  提供了非金属有机催化剂，有助于α，β-不饱和酮的对映选择性反应。这些催化剂是手性咪唑烷酮化合物，具有式(IIB)或(IIB)1的结构，或者是它们的酸加成盐，其中，在一个首选实施例中，R1为C1-C6烷基，R2为苯基或2-甲基呋喃基，R3和R4为氢，R5为苯基，可选择地与来自卤素、羟基和C1-C6烷基的1或2个取代基之一取代。这些手性咪唑烷酮在催化各种反应中很有用，包括环加成反应、弗里德尔-克拉夫斯烷基化反应和迈克尔加成反应。