2-苄基-1-羟基-3-丁酮 | 127841-27-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-苄基-1-羟基-3-丁酮
• 英文名称: 4-phenyl-3-hydroxymethyl-2-butanone
• 英文别名: 2-benzyl-1-hydroxy-3-butanone；3-benzyl-4-hydroxy-2-butanone；3-Benzyl-4-hydroxybutan-2-one
• CAS: 127841-27-4
• 化学式: C₁₁H₁₄O₂
• 分子量: 178.231
• InChiKey: QIEPEXBZWZNCAY-UHFFFAOYSA-N

物化性质

• 沸点：
  312.3±22.0 °C(Predicted)
• 密度：
  1.068±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-苄基-1-羟基-3-丁酮 在 对甲苯磺酸 作用下， 以 乙醚 、 甲苯 为溶剂， 反应 0.5h， 生成 3-benzyl-2-pentanone
  参考文献：
  名称：

  Functional group hybrids. Reactivity of .alpha.'-nucleofuge .alpha.,.beta.-unsaturated ketones. 1. Reactions with organocopper reagents

  摘要：

  A series of alpha-nucleofuge alpha',beta'-unsaturated ketones encompassing a variety of structural types and nucleofuges was prepared. Treatment of these compounds with lithium dimethylcuprate or methylcopper leads primarily to either reductive cleavage of the alpha-nucleofuge or conjugate addition. Good alpha-nucleofuges favored the reduction pathway while poorer nucleofuges favored conjugate addition.

  DOI：

  10.1021/jo00024a014
• 作为产物：
  描述：

  2-苄基乙酰乙酸乙酯 生成 2-苄基-1-羟基-3-丁酮
  参考文献：
  名称：

  由β-酮酸酯合成α，β-不饱和δ-内酯的快速有效的成环方案

  摘要：

  β-酮酸酯6a–3转化为β-酮醇7a–3，它们与膦酸酯9a–e同源。分子内霍纳-沃兹沃思-埃蒙斯反应可提供出色的总收率的δ内酯10a-d。

  DOI：

  10.1016/s0040-4039(00)74216-x

文献信息

• Bioreduction of α-Acetoxymethyl Enones: Proposal for an S_N2′ Mechanism Catalyzed by Enereductase
  作者：Bruno R. S. Paula、Davila Zampieri、J. Augusto R. Rodrigues、Paulo J. S. Moran

  DOI：10.1002/adsc.201600601

  日期：2016.11.17

  acylated Morita–Baylis–Hillman adduct 1‐acetoxy‐2‐methylene‐1‐phenylbutan‐3‐one produced a mixture of products, with and without the acetoxy group, via three different reaction pathways. In addition to experiments employing whole cells, those in which isolated enereductases were used suggested that the main pathway through which the loss of the acetoxy group occurs during the biocatalytic cascade is an SN2′‐type

  （Z）-3-乙酰氧基甲基-4-R-3-丁烯-2-酮（R =芳基，烷基）和（Z）-3-甲基-4-R-3-丁烯-2-丁烯（R =芳基）合成并通过酿酒酵母进行还原，分别产生（R）-和（S）-4-R-3甲基丁烷-2-。这种立体化学控制策略适用于对映体过量至中度过量的（R）-和（S）-Tropional®的合成。其他（Z）-3-酰氧基甲基-4-苯基-3-丁烯-2-酮的行为与（Z）-3-乙酰氧基甲基对应物和酰化的Morita-Baylis-Hillman加合物1-乙酰氧基-2-亚甲基-1-苯基丁烷-3-酮通过三种不同的反应途径生成了带有或不带有乙酰氧基的产物混合物。除了使用全细胞的实验外，使用分离的烯还原酶的实验还表明，在生物催化级联反应中发生乙酰氧基丢失的主要途径是S N 2'型反应，而不是正式的氢加成反应。消除乙酸。最后，相关的乙基烯酮被酵母白色念珠菌对映体选择性还原，产生（R）-和（S）还原产物，取决于起始原料中乙酰氧基的存在。
• Efficient Synthesis of α-(Hydroxymethyl) Ketones Not Available Through Aldol-Type Processes
  作者：Shawn R. Hitchcock、Françoise Perron、Van A. Martin、Kim F. Albizati

  DOI：10.1055/s-1990-27093

  日期：——

  An efficient synthesis of α-(hydroxymethyl) ketones from β-keto esters has been developed, which is experimentally simple, amenable to large scale production and provides products of high purity without resort to chromatography in most cases. The method is a useful alternative and complement to condensation processes.

  已开发出一种从β-酮酯高效合成α-(羟甲基)酮的方法，该方法实验简单，适合大规模生产，并且在大多数情况下无需借助色谱法即可提供高纯度产品。此方法是对缩合过程的有用替代和补充。
• Alkylative carbonyl transposition of dihydro-α-pyrones to dihydro-α-pyrones
  作者：A. Nangia、P.Bheema Rao

  DOI：10.1016/s0040-4039(00)77655-6

  日期：1993.4

  Dihydro-α-pyrones (2) are prepared from β-hydroxy ketones (1). Dihydropyrones (2) are transformed to unsaturated δ-lactones (4) via an alkylative 1,3-carbonyl transposition.

  二氢α吡喃酮（2）由β羟基酮（制备1）。二氢吡喃酮（2）通过烷基化的1，3-羰基转座转化为不饱和δ-内酯（4）。
• Chemistry of dioxenium cations. Synthetic and mechanistic studies on the stereocontrolled formation of tetrahydropyrans from homoallylic alcohols and ortho esters
  作者：Francoise Perron-Sierra、Michele A. Promo、Van A. Martin、Kim F. Albizati

  DOI：10.1021/jo00021a043

  日期：1991.10

  Despite their long history, dioxenium cations are underutilized reactive synthetic intermediates. It was found that ortho esters and homoallylic alcohols in the presence of Lewis acids provide 4-heterosubstituted pyranosides in a stereoselective manner. The mechanistic course of events was supported by control experiments and synthesis of a putative mixed ortho ester intermediate which exhibited identical reactivity. A transition state for termination of the dioxenium cation-olefin cyclization is proposed, involving intramolecular delivery of chloride by a coordinated tin species. Structure-reactivity relationships indicate that a cation-stabilizing substituent (alkyl or alkoxy) at the internal position of the olefin is required for cyclization. A variety of 3-alkyl-substituted homoallylic alcohols cyclize cleanly to substituted 2-alkoxytetrahydropyrans in good yield. beta-silyloxy silyl enol ethers were found to smoothly provide 4-oxotetrahydropyranosides when subjected to the same reaction conditions. For these substrates, the course of the cyclization proceeds in a different manner involving a rapid intermolecular Mukaiyama aldol condensation followed by transacetalization.
• Van Martin; Murray, Desmond H.; Pratt, Norman E., Journal of the American Chemical Society, 1990, vol. 112, # 19, p. 6965 - 6978
  作者：Van Martin、Murray, Desmond H.、Pratt, Norman E.、Zhao, Yun-Bo、Albizati, Kim F.

  DOI：——

  日期：——