trans-3,4-diphenyl-2-isoxazoline-5-methanol | 141525-32-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: trans-3,4-diphenyl-2-isoxazoline-5-methanol
• 英文别名: trans-5-hydroxymethyl-3,4-diphenyl-4,5-dihydroisoxazole；((4SR,5SR)-3,4-diphenyl-4,5-dihydroisoxazol-5-yl)methanol；(3,4-diphenyl-4,5-dihydroisoxazol-5-yl)methanol；[(4S,5S)-3,4-diphenyl-4,5-dihydro-1,2-oxazol-5-yl]methanol
• CAS: 141525-32-8
• 化学式: C₁₆H₁₅NO₂
• 分子量: 253.301
• InChiKey: HUUZMDPQGDFSIT-HUUCEWRRSA-N

物化性质

• 沸点：
  413.5±55.0 °C(Predicted)
• 密度：
  1.18±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  41.8
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  苯甲腈 N-氧化物 在 sodium tetrahydroborate 作用下， 以 甲醇 、 乙醚 为溶剂， 反应 50.0h， 生成 trans-3,4-diphenyl-2-isoxazoline-5-methanol
  参考文献：
  名称：

  氧化腈与α，β-不饱和醛的环加成反应。确定区域化学作用的边际轨道相互作用和次要轨道相互作用

  摘要：

  已经确定了腈氧化物与巴豆醛和肉桂醛的环加成物的区域化学，并且也由边界轨道相互作用和次级轨道相互作用决定。在α，β-不饱和化合物的环加成反应中，前沿轨道相互作用的定向效应可通过空间漂移和次级轨道相互作用来转移。

  DOI：

  10.1016/s0040-4020(00)00356-2

文献信息

• Microwave Accelerated Cycloaddition Reactions of Nitrile Oxides and Allylic Alcohols
  作者：Ta-Jung Lu、Gwo-Ming Tzeng

  DOI：10.1002/jccs.200000022

  日期：2000.2

  promoting the cycloaddition reactions of allyl alcohols with nitrile oxides using a domestic microwave oven and a focused monomode microwave reactor have demonstrated that not only was the reaction time substantially reduced, but also the reaction yields were significantly improved over the conventional stirred reactions. Microwave irradiation alters the regioselectivity of the cycloaddition reaction which

  使用家用微波炉和聚焦单模微波反应器应用微波促进烯丙醇与氧化腈的环加成反应表明，与传统的搅拌反应器相比，不仅反应时间显着缩短，而且反应收率显着提高反应。微波照射改变了环加成反应的区域选择性，这有利于非氢键导向的环加合物异恶唑啉 4。
• Cobalt-catalyzed aerobic oxidative cyclization of β,γ-unsaturated oximes
  作者：Weifei Li、Pingjing Jia、Bing Han、Dianjun Li、Wei Yu

  DOI：10.1016/j.tet.2013.02.032

  日期：2013.4

  Cobalt complex Co(nmp)2 can efficiently catalyze the aerobic oxidative 5-exo cyclization of β,γ-unsaturated oximes to afford isoxazolines. The key cyclization step involves the generation of carbon-centred radicals. The products are largely dependent on the reaction conditions. The oxidative termination products 2 were produced predominantly when the reaction was carried out in i-PrOH, whereas the

  钴配合物Co（nmp）2可以有效催化β，γ-不饱和肟的有氧氧化5-外切环化反应，得到异恶唑啉。关键的环化步骤涉及碳中心自由基的产生。产物在很大程度上取决于反应条件。当在i -PrOH中进行反应时，主要产生氧化终止产物2，而在环己-1,4-二烯存在下，在甲苯中选择性地获得还原终止产物3。
• Palladium-Catalyzed Oxime Assisted Intramolecular Dioxygenation of Alkenes with 1 atm of Air as the Sole Oxidant
  作者：Ming-Kui Zhu、Jun-Feng Zhao、Teck-Peng Loh

  DOI：10.1021/ja100716x

  日期：2010.5.12

  This paper describes a palladium-catalyzed oxime assisted intramolecular dioxygenation of alkenes by using 1 atm of air as the sole oxidant under extremely mild conditions, which demonstrated the feasibility of incorporating atmospheric oxygen into synthetically useful products under 1 atm of air at room temperature.
• Regiocontrol of nitrile oxide cycloadditions to allyl alcohols. Synthesis of 4-substituted and 4,4-disubstituted 5-hydroxymethyl-2-isoxazolines
  作者：Shuji Kanemasa、Masaki Nishiuchi、Eiji Wada

  DOI：10.1016/s0040-4039(00)91622-8

  日期：1992.3

  The first regiocontrol of nitrile oxide cycloadditions is described. Reaction of benzonitrile oxide with (E)-2-butenol is highly accelerated by the presence of a magnesium alkoxide, and this reaction proceeds in an exclusively regioselective manner to produce 5-hydroxymethyl-4-methyl-3-phenyl-2-isoxazoline as the sole cycloadduct. Synthetic applications to other substituted allyl alcohols are discussed.
• First Successful Metal Coordination Control in 1,3-Dipolar Cycloadditions. High-Rate Acceleration and Regio- and Stereocontrol of Nitrile Oxide Cycloadditions to the Magnesium Alkoxides of Allylic and Homoallylic Alcohols
  作者：Shuji Kanemasa、Masaki Nishiuchi、Akio Kamimura、Kenzi Hori

  DOI：10.1021/ja00085a012

  日期：1994.3

  The first successful control of stereo- and regioselectivity in 1,3-dipolar cycloadditions by metal coordination is described. The presence of magnesium ions dramatically accelerates nitrile oxide dipolar cycloadditions to allylic alcohols, improving both the regio- and stereoselectivity of the reaction. For example, cycloadditions to terminal allylic alcohols bearing alpha-chirality produce syn-stereoisomers of 2-isoxazolines selectively, and reactions involving the magnesium alkoxides of internal allylic alcohols are exclusively regioselective in favor of 5-hydroxymethyl-2-isoxazolines. Metal alkoxides other than magnesium, such as lithium, zinc, and aluminum alkoxides, are less effective. These reactions involve the formation of activated intermediates in which a nitrile oxide and an allylic alkoxide coordinate to the magnesium ion. Theoretical calculations indicate that the formation of the coordinated intermediates enhances the rate of cycloaddition and also improves the syn-selectivity.