Acetic acid (S)-1-benzyl-buta-2,3-dienyl ester | 135664-04-9

• 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: Acetic acid (S)-1-benzyl-buta-2,3-dienyl ester
• CAS: 135664-04-9
• 化学式: C₁₃H₁₄O₂
• 分子量: 202.253
• InChiKey: AVWGKHCEMHAEMJ-CYBMUJFWSA-N

物化性质

• 沸点：
  301.6±22.0 °C(Predicted)
• 密度：
  0.999±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  15.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  乙酸乙烯酯 、 1-phenylpenta-3,4-dien-2-ol 在 Amano lipase from Pseudomonas fluorescens 作用下， 以 甲基叔丁基醚 为溶剂， 反应 183.0h， 以49%的产率得到(-)-1-phenyl-3,4-pentadien-2-ol
  参考文献：
  名称：

  α-链烯醇的高立体选择性动力学拆分：酶促方法

  摘要：

  开发了一种高效脂肪酶AK催化的多种α-烯醇的直接动力学拆分方法。作为对先前研究的补充，当前的反应系统对C（1）上的广泛取代基（R 1）有效，例如烷基，芳基，烯基和炔基。修改了Jones-Burgess的经验模型，以解释仲醇乙酰化过程中逆向选择性。烯丙醇的C（2）处的甲基暗示脂肪酶AK的催化三联体中的小结构调整，代表未来定点诱变的潜在方向。

  DOI：

  10.1016/j.tetlet.2015.12.098

文献信息

• Enzyme‐ and Ruthenium‐Catalyzed Enantioselective Transformation of α‐Allenic Alcohols into 2,3‐Dihydrofurans
  作者：Bin Yang、Can Zhu、Youai Qiu、Jan‐E. Bäckvall

  DOI：10.1002/anie.201601505

  日期：2016.4.25

  An efficient one‐pot method for the enzyme‐ and ruthenium‐catalyzed enantioselective transformation of α‐allenic alcohols into 2,3‐dihydrofurans has been developed. The method involves an enzymatic kinetic resolution and a subsequent ruthenium‐catalyzed cycloisomerization, which provides 2,3‐dihydrofurans with excellent enantioselectivity (up to >99 % ee). A ruthenium carbene species was proposed as

  开发了一种有效的一锅法，用于酶和钌催化的 α-丙二烯醇对映选择性转化为 2,3-二氢呋喃。该方法涉及酶动力学拆分和随后的钌催化环异构化，从而提供具有优异对映选择性的 2,3-二氢呋喃（高达 >99 % ee ）。钌卡宾被提议作为环异构化的关键中间体。
• Enzymatic Kinetic Resolution (EKR) of α-Allenols Enabled by a Commercially Available Immobilized Lipase
  作者：Can Zhu、Tianyu Zhang

  DOI：10.1055/s-0042-1751525

  日期：——

  practical EKR of α-allenols enabled by a commercially available immobilized lipase, Lipozyme TL-IM. The stereoselectivity factor (S-factor) of this kinetic resolution (KR) was investigated to reach up to >1000. The robust nature of the EKR strategy is reflected by a broad scope of α-allenol substrates with the excellent control of enantioselectivity. This method offers an alternative approach to access chiral

  外消旋体的酶动力学拆分 (EKR) 被认为是一种高效且可扩展的技术，可以以环境友好的方式提供对映体纯物质。在此，我们开发了一种实用的 α-联烯醇 EKR，由市售的固定化脂肪酶 Lipozyme TL-IM 实现。经研究，该动力学分辨率 (KR) 的立体选择性因子 ( S因子) 高达 >1000。广泛的 α-联烯醇底物以及对对映选择性的出色控制反映了 EKR 策略的稳健性。该方法提供了一种获取手性 α-联烯醇的替代方法，手性 α-联烯醇可以轻松转化为许多有价值的氧环。
• Enantioselective esterifications of unsaturated alcohols mediated by a lipase prepared from Pseudomonas sp
  作者：Kevin Burgess、Lee D. Jennings

  DOI：10.1021/ja00016a032

  日期：1991.7

  Competition experiments and measurements of enantioselectivities were used to develop a simple active-site model (Figure 1) for resolutions of beta-hydroxy-alpha-methylene carbonyl compounds III via acyl transfers mediated by lipase from Pseudomonas sp. (AK). Further experiments were used to test and refine this model with respect to resolutions of allylic, propargylic, homopropargylic, and other alcohols (Tables I-IV, respectively). The model proved extremely reliable for predicting the sense of the asymmetric induction, and the combined data collected in this paper give an indication of what structural features of the substrates can be correlated with high enantioselectivities in these resolutions. Furthermore, the results account for the conspicuous reversal of enantioselectivity previously observed in resolutions of gamma-hydroxy-alpha,beta-unsaturated esters 35. Kinetic resolutions of two substrates (allenol 14 and dienol 9) via asymmetric epoxidations were performed for comparison with the methodology presented in this paper.