ethyl (4E)-3-hydroxy-3-methyl-5-phenylpent-4-enoate

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醇
• 英文名称: ethyl (4E)-3-hydroxy-3-methyl-5-phenylpent-4-enoate
• 英文别名: ethyl(4E)-3-hydroxy-3-methyl-5-phenylpent-4-enoate；ethyl (E)-3-hydroxy-3-methyl-5-phenylpent-4-enoate
• 化学式: C₁₄H₁₈O₃
• 分子量: 234.295
• InChiKey: XBRYZTMBSJETNR-MDZDMXLPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  (E)-3-Dimethylsilanyloxy-3-methyl-5-phenyl-pent-4-enoic acid ethyl ester 在 盐酸 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.08h， 生成 ethyl (4E)-3-hydroxy-3-methyl-5-phenylpent-4-enoate
  参考文献：
  名称：

  Metal Chloride-Promoted Aldol Reaction of α-Dimethylsilylesters with Aldehydes, Ketones, and α-Enones

  摘要：

  在氯化锂（LiCl）的催化量存在下，α-二甲基硅醚（α-DMS-酯）1在30°C下顺利与各种醛反应，以良好至高收率生成醇醛化合物。另一方面，酮的醇醛反应更有效地被氯化镁（MgCl2）而非氯化锂（LiCl）促进。α-烯酮也能在羰基碳或β-碳上经历金属氯化物促进的1的加成反应。

  DOI：

  10.1055/s-2005-871938

文献信息

• A New Method for the Catalytic Aldol Reaction to Ketones
  作者：Kounosuke Oisaki、Yutaka Suto、Motomu Kanai、Masakatsu Shibasaki

  DOI：10.1021/ja034993n

  日期：2003.5.1

  A new method for the catalytic aldol reaction to ketones, using CuF.3PPh3.2EtOH complex as the catalyst and (EtO)3SiF as the additive, is described. The reaction can be applied to a wide range of ketones and trimethylsilyl enolates. On the basis of mechanistic studies, a working hypothesis for the catalytic cycle is proposed, in which the dynamic ligand exchange mediated by copper silicates produces

  介绍了一种以 CuF.3PPh3.2EtOH 配合物为催化剂、(EtO)3SiF 为添加剂的催化醛醇反应生成酮的新方法。该反应可应用于范围广泛的酮和三甲基甲硅烷基烯醇化物。在机理研究的基础上，提出了催化循环的工作假设，其中由硅酸铜介导的动态配体交换产生活性烯醇铜。此外，本反应可以扩展到使用 tol-BINAP 作为手性配体的催化对映选择性反应。
• Catalytic enantioselective Reformatsky reaction with ketones
  作者：M. Ángeles Fernández-Ibáñez、Beatriz Maciá、Adriaan J. Minnaard、Ben L. Feringa

  DOI：10.1039/b801749b

  日期：——

  Chiral tertiary alcohols were obtained with good yields and enantioselectivities via a catalytic Reformatsky reaction with ketones, including the challenging diaryl ketones, using chiral BINOL derivatives.

  通过使用手性BINOL衍生物与酮（包括具有挑战性的二芳基酮）进行催化的Reformatsky反应，可以得到高收率和对映选择性的手性叔醇。
• Indolinylmethanol catalyzed enantioselective Reformatsky reaction with ketones
  作者：Ning Lin、Miao-Miao Chen、Ren-Shi Luo、Yan-Qiu Deng、Gui Lu

  DOI：10.1016/j.tetasy.2010.11.004

  日期：2010.12

  A series of chiral indolinylmethanol ligands have been applied for the first time in the asymmetric Reformatsky reaction of an α-bromoester with ketones. In the presence of NiBr2 and zinc powder, up to 75% yield and 87% ee were obtained for a variety of aromatic and aliphatic ketones. The use of Ni(acac)2 resulted in 96% ee although the corresponding yield was low. This process provided a convenient

  在α-溴酸酯与酮的不对称Reformatsky反应中，首次应用了一系列手性吲哚基甲醇配体。在NiBr 2和锌粉的存在下，各种芳族和脂族酮的收率均达到75％，ee达到87％。Ni（acac）2的使用产生了96％的ee，尽管相应的收率很低。该方法提供了一种方便的方法来获得合成上有用的手性β-羟基酯。
• Process for producing fused imidazole compound, reformatsky reagent in stable form, and process for producing the same
  申请人：Nuwa Shigeru

  公开号：US20050043544A1

  公开（公告）日：2005-02-24

  The present invention provides an industrially advantageous process for producing a steroid C 17,20 lyase inhibitor represented by the general formula (I): and a Reformatsky reagent in a stable form suitable for the process. In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH 2 COOC 2 H 5 or a crystal of the compound which is represented by the formula (BrZnCH 2 COOC 2 H 5 .THF) 2 .

  本发明提供了一种工业上有利的方法，用于制备一种由一般式（I）表示的类固醇C17，20裂解酶抑制剂和适用于该过程的稳定的Reformatsky试剂。在本发明中，通过在金属氢化物复合物和金属卤化物的存在下还原从特定羰基化合物得到的特定β-羟基酯化合物衍生物或其盐，并随后将其进行环闭合反应，从而产生一种由一般式（I）表示的化合物。在上述Reformatsky反应中，使用由一般式BrZnCH2COOC2H5表示的化合物的稳定溶液或由公式（BrZnCH2COOC2H5.THF）2表示的化合物的晶体是有用的。
• Reformatsky Reagent in Stable Form and Process for Producing the Same
  申请人：Takeda Pharmaceutical Company Limited

  公开号：EP2275411A2

  公开（公告）日：2011-01-19

  The present invention provides an industrially advantageous process for producing a steroid C17,20 lyase inhibitor represented by the general formula (I): and a Reformatsky reagent in a stable form suitable for the process. In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH2COOC2H5 or a crystal of the compound which is represented by the formula (BrZnCH2COOC2H5·THF)2.

  本发明提供了一种生产由通式（I）代表的类固醇 C17,20 裂解酶抑制剂的工业化有利工艺： 和一种适用于该工艺的稳定形式的 Reformatsky 试剂。 在本发明中，在金属氢化物络合物和金属卤化物存在下，通过 Reformatsky 反应还原特定 β-羟基酯化合物衍生物或由特定羰基化合物得到的其盐，然后使其进行闭环反应，即可制得通式（I）代表的化合物。在上述 Reformatsky 反应中，使用通式为 BrZnCH2COOC2H5 的化合物的稳定溶液或通式为 (BrZnCH2COOC2H5-THF)2 的化合物晶体是有用的。