(+)-(2R)-2-乙酰氧基环己酮 | 64363-90-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: (+)-(2R)-2-乙酰氧基环己酮
• 英文名称: (+)-(2R)-2-acetoxycyclohexanone
• 英文别名: (R)-2-acetyloxy cyclohexanone；(2R)-2-acetoxycyclohexanone；(R)-2-oxocyclohexyl acetate；(R)-2-acetoxycyclohexanone；Cyclohexanone, 2-(acetyloxy)-, (2R)-；[(1R)-2-oxocyclohexyl] acetate
• CAS: 64363-90-2
• 化学式: C₈H₁₂O₃
• 分子量: 156.181
• InChiKey: DVPFXXZVXFSUTH-MRVPVSSYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (+)-(2R)-2-乙酰氧基环己酮 、 2,4-戊二醇 在 4-甲基苯磺酸吡啶 作用下， 以 苯 为溶剂， 以49%的产率得到
  参考文献：
  名称：

  Stereochemical study on an oxygen-directed olefin oxidation and subsequent oxygen cyclization: Differences between peracid and metal oxide-catalyzed hydroperoxide in oxidation reactions

  摘要：

  Optically active (2S,4R)-2-hydroxy-4-pentyl enol ether was prepared for the first time and subjected to hydroxy-directed oxidations at the olefinic group. Treatment with m-chloroperbenzoic acid and tertbutyl hydroperoxide/vanadium acetylacetonate resulted in the same stereoface differentiation at the olefin, with diastereomeric excesses as high as 79% and 92%, respectively, whereas the stereochemistry of the products of subsequent nucleophilic additions of the hydroxy group was opposite. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2013.05.025
• 作为产物：
  描述：

  cis-1,2-cyclohexane 在 吡啶 、 chromium(VI) oxide 、 4-二甲氨基吡啶 、 三氟甲磺酸三甲基硅酯 、 potassium tert-butylate 、 4-甲基苯磺酸吡啶 、 四氯化钛 作用下， 以 四氢呋喃 、 吡啶 、 二氯甲烷 、 水 为溶剂， 反应 71.75h， 生成 (+)-(2R)-2-乙酰氧基环己酮
  参考文献：
  名称：

  Enantiodifferentiating functionalization of cis-cycloalkane-1,2-diols and cis-endo-5-norbornen-2,3-ylenebis(methanol) via chiral spiroacetals derived from L-menthone

  摘要：

  DOI：

  10.1021/jo00272a027

文献信息

• A Multicatalyst System for the One‐Pot Desymmetrization/Oxidation of <i>meso</i> ‐1,2‐Alkane Diols
  作者：Christian E. Müller、Radim Hrdina、Raffael C. Wende、Peter R. Schreiner

  DOI：10.1002/chem.201100498

  日期：2011.5.27

  Two is better than one: We demonstrate the viability of an organocatalytic reaction sequence along a short peptide backbone that carries two independent catalytic functionalities, which allow the rapid, one‐pot acylative desymmetrization and oxidation of meso‐alkane‐1,2‐diols to the corresponding acetylated acetoins with good yields and enantioselectivities (see scheme).

  两个优于一个：我们证明的有机催化反应序列的沿着承载两个独立的催化功能，其允许快速，一锅acylative desymmetrization和氧化的短肽骨架的生存能力内消旋-烷烃-1,2-二醇来具有良好产率和对映选择性的相应乙酰化乙酰丙酮（参见方案）。
• Asymmetric α-oxyacylation of cyclic ketones
  作者：Deborah A. Smithen、Christopher J. Mathews、Nicholas C. O. Tomkinson

  DOI：10.1039/c2ob25293g

  日期：——

  Reaction of cyclic ketones with chiral N-alkyl-O-acyl hydroxylamines leads to the corresponding α-oxyacylated carbonyl compound in up to 89% ee. The levels of asymmetric induction were influenced by solvent polarity, acid strength and, to a lesser extent, temperature. Increasing the steric bulk around the nitrogen atom of the hydroxylamine reagent led to increased levels of asymmetric induction, which was also found to be detrimental to the yield observed for the transformation. Examination of N- and O-substituents along with substrates revealed the scope and limitations of the procedure.

  环酮与手性N-烷基-O-酰基羟胺的反应可生成相应的α-氧酰基羰基化合物，其对映体过量率达89%。不对称诱导的水平受到溶剂极性、酸强度以及温度（影响较小）的影响。增加羟胺试剂中氮原子周围的立体障碍，可提高不对称诱导的水平，但这也会对转化反应的产率产生不利影响。通过对N-和O-取代基以及底物的考察，揭示了该方法的应用范围和局限性。
• Flexible Stereoselective Functionalizations of Ketones through Umpolung with Hypervalent Iodine Reagents
  作者：Pushpak Mizar、Thomas Wirth

  DOI：10.1002/anie.201400405

  日期：2014.6.2

  The functionalization of carbonyl compounds in the α‐position has gathered much attention as a synthetic route because of the wide biological importance of such products. Through polarity reversal, or “umpolung”, we show here that typical nucleophiles, such as oxygen, nitrogen, and even carbon nucleophiles, can be used for addition reactions after tethering them to enol ethers. Our findings allow novel

  由于此类产品具有广泛的生物学重要性，因此羰基化合物在α位上的功能化作为合成途径已引起广泛关注。通过极性反转或“极性”，我们在这里表明典型的亲核试剂，例如氧，氮，甚至碳亲核试剂，在将它们束缚到烯醇醚后，可以用于加成反应。我们的发现可以进行新颖的逆合成规划，并可以快速组装以前只能通过多步序列访问的结构。
• Lead(IV) acetate mediated cleavage of β-hydroxy ethers: enantioselective synthesis of α-acetoxy carbonyl compounds
  作者：Enrique Alvarez-Manzaneda、Rachid Chahboun、Esteban Alvarez、Ramón Alvarez-Manzaneda、Pedro E. Muñoz、Fermín Jimenez、Hanane Bouanou

  DOI：10.1016/j.tet.2011.09.056

  日期：2011.11

  α-Acetoxy aldehydes or α-acetoxy ketones can be efficiently synthesized by treating 2,3-epoxy primary alcohols with lead tetraacetate. The reaction, which proceeds with complete regio- and stereoselectivity facilitates the enantioselective synthesis of α-acetoxy carbonyl compounds from allyl alcohols, via Sharpless epoxidation. Cyclic β-hydroxy ethers, with an oxygenated five-, six- or seven-membered

  通过用四乙酸铅处理2，3-环氧伯醇可以有效地合成α-乙酰氧基醛或α-乙酰氧基酮。以完全的区域和立体选择性进行的反应有助于通过Sharpless环氧化由烯丙醇对映体选择性合成α-乙酰氧基羰基化合物。具有氧化的五元，六元或七元环的环状β-羟基醚被转化为α-乙酰氧基醚。
• Chemoenzymatic Dynamic Kinetic Resolution of Allylic Alcohols:  A Highly Enantioselective Route to Acyloin Acetates
  作者：Krisztián Bogár、Pilar Hoyos Vidal、Andrés R. Alcántara León、Jan-E. Bäckvall

  DOI：10.1021/ol071395v

  日期：2007.8.1

  Dynamic kinetic resolution (DKR) of a series of sterically hindered allylic alcohols has been conducted with Candida antarctica lipase B (CALB) and ruthenium catalyst 1. The optically pure allylic acetates obtained were subjected to oxidative cleavage to give the corresponding acylated acyloins in high yields without loss of chiral information.

  用南极假丝酵母脂肪酶B（CALB）和钌催化剂1进行了一系列位阻烯丙基醇的动态动力学拆分（DKR）。将得到的光学纯净的烯丙基乙酸酯进行氧化裂解，以高产率得到相应的酰化酰化酰胆碱。不会丢失手性信息。