L-tert-butyl 2-acetyloxy-3-phenylpropanoate | 7678-28-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: L-tert-butyl 2-acetyloxy-3-phenylpropanoate
• 英文别名: (S)-t-Butyl 2-Acetoxy-3-phenylpropionat；tert-butyl (2S)-2-acetyloxy-3-phenylpropanoate
• CAS: 7678-28-6
• 化学式: C₁₅H₂₀O₄
• 分子量: 264.321
• InChiKey: AZMOLZOENCSRRW-ZDUSSCGKSA-N

物化性质

• 沸点：
  345.8±22.0 °C(Predicted)
• 密度：
  1.078±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  19
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  L-tert-butyl 2-acetyloxy-3-phenylpropanoate 在 potassium carbonate 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 12.0h， 生成 (AR)-A-[(1,3-二氢-1,3-二氧代-2H-异吲哚-2-基)氧基]-苯丙酸-1,1-二甲基乙酸乙酯
  参考文献：
  名称：

  Synthesis and Characterization of Chiral N−O Turns Induced by α-Aminoxy Acids

  摘要：

  Chiral alpha -aminoxy acids of various side chains were synthesized with high optical purity starting from chiral alpha -amino acids. The conformations of diamides 13a-e, 15, and 16 were probed by using NMR, FT-IR, and CD spectroscopic methods as well as X-ray crystallography. The right-handed turns with eight-membered-ring intramolecular hydrogen bonds between adjacent residues (called the N-O turns) were found to be preferred for D-aminoxy acid residues, and they were independent of the side chains. The rigid chiral N-O turns should have great potential in molecular design.

  DOI：

  10.1021/jo010376a
• 作为产物：
  描述：

  L-(-)-3-苯基乳酸 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 16.0h， 生成 L-tert-butyl 2-acetyloxy-3-phenylpropanoate
  参考文献：
  名称：

  Synthesis and Characterization of Chiral N−O Turns Induced by α-Aminoxy Acids

  摘要：

  Chiral alpha -aminoxy acids of various side chains were synthesized with high optical purity starting from chiral alpha -amino acids. The conformations of diamides 13a-e, 15, and 16 were probed by using NMR, FT-IR, and CD spectroscopic methods as well as X-ray crystallography. The right-handed turns with eight-membered-ring intramolecular hydrogen bonds between adjacent residues (called the N-O turns) were found to be preferred for D-aminoxy acid residues, and they were independent of the side chains. The rigid chiral N-O turns should have great potential in molecular design.

  DOI：

  10.1021/jo010376a

文献信息

• Total Synthesis of the Antifungal Depsipeptide Petriellin A
  作者：Marianne M. Sleebs、Denis Scanlon、John Karas、Rani Maharani、Andrew B. Hughes

  DOI：10.1021/jo201017w

  日期：2011.8.19

  We report the solid-phase total synthesis of the antifungal highly modified cyclic depsipeptide petriellin A. The synthesis confirms earlier reports on the absolute configuration of the natural product. The solid-phase approach resulted in a protected linear precursor, which was cleaved from the solid support prior to cyclization and final deprotection. Use of advanced coupling agents for several hindered

  我们报告了抗真菌的高度修饰的环状depsipeptide petriellin A的固相全合成。该合成证实了关于天然产物的绝对构型的早期报道。固相方法得到受保护的线性前体，其在环化和最终脱保护之前从固体支持物上裂解下来。先进的偶联剂用于几种受阻酰胺是合成的一个特征。天然产物的总产率为5％。
• Benzotriazole-Mediated Syntheses of Depsipeptides and Oligoesters
  作者：Ilker Avan、Srinivasa R. Tala、Peter J. Steel、Alan R. Katritzky

  DOI：10.1021/jo200174j

  日期：2011.6.17

  Reactions of O-Pg(α-hydroxyacyl)benzotriazoles with (a) unprotected α-hydroxycarboxylic acids, (b) amino acids, and (c) amines afforded, respectively, chirally pure (a) oligoesters, (b) depsidipeptides, and (c) amide conjugates (yields 52−94%). N-Pg(α-Aminoacyl)benzotriazoles reacted with α-hydroxycarboxylic acids to yield depsidipeptides (47−87%). N-Pg(depsidipeptidoyl)benzotriazoles, obtained from

  的反应ø -Pg（α羟）与（a）中未保护的α羟基羧酸苯并三唑类，（b）中的氨基酸，和（c）胺，得到分别手性纯的（a）低聚酯，（b）中depsidipeptides，和（ c）酰胺共轭物（产率52-94％）。N -Pg（α-氨基酰基）苯并三唑与α-羟基羧酸反应生成二肽（47-87％）。得自二肽二肽的N -Pg（二肽二肽基）苯并三唑与氨基酸和α-羟基羧酸反应生成二十肽（产率为55-78％）。用N -Pg（α-氨基酰基）苯并三唑对α-羟基羧酸进行O-酰化，然后进行脱保护，产生了未保护的可用于制备十肽的肽。
• Synthesis of optically active .ALPHA.-alkyl or .ALPHA.-aryl acids from L-.ALPHA.-amino acids by the use of organocopper reagents.
  作者：SHIRO TERASHIMA、CHUNGCHYI TSENG、KENJI KOGA

  DOI：10.1248/cpb.27.747

  日期：——

  With an aim to further explore the utility of L-α-amino acids (I) in the synthesis of optically active compounds, the reaction of optically active α-tosyloxy acids and their derivatives (III) readily obtainable from I, with several types of organocopper reagents were studied. Although there still remain some ambiguity in the formation of unusual reaction products such as the β-keto ester (dl-6) and the vicinal diol ((R)(+)-13) and in lower yields for the substitution products, it has become evident that when optically active α-tosyloxy acids prepared from L-phenylalanine, L-alanine, and L-leucine, respectively, are treated with lithium dialkyl- or diarylcuprates, the substitution reactions can proceed with almost full inversion to give corresponding optically active α-alkyl or α-aryl acids in max. 63% yield.

  为了进一步探索L-α-氨基酸(I)在光学活性化合物合成中的用途，由I容易获得光学活性α-甲苯磺酰氧基酸及其衍生物(III)与几种类型的反应研究了有机铜试剂。尽管在形成不寻常的反应产物（如 β-酮酯 (dl-6) 和邻二醇 ((R)(+)-13））以及取代产物的产率较低方面仍然存在一些模糊性，但它已经很明显，当分别由L-苯丙氨酸、L-丙氨酸和L-亮氨酸制备的光学活性α-甲苯磺酰氧基酸用二烷基铜或二芳基铜酸锂处理时，取代反应可以几乎完全反转进行，得到相应的光学活性最大 α-烷基或 α-芳基酸收率63%。
• Zinc‐Catalyzed Enantiospecific sp³–sp³ Cross‐Coupling of α‐Hydroxy Ester Triflates with Grignard Reagents
  作者：Christopher Studte、Bernhard Breit

  DOI：10.1002/anie.200800733

  日期：2008.7.7