3-(4-chlorophenyl)-5-hydroxy-4,5-dihydroisoxazole | 170648-35-8

• 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: 3-(4-chlorophenyl)-5-hydroxy-4,5-dihydroisoxazole
• 英文别名: 3-(4-chlorophenyl)-5-hydroxy-2-isoxazoline；3-(4-Chlorophenyl)-4,5-dihydro-1,2-oxazol-5-ol
• CAS: 170648-35-8
• 化学式: C₉H₈ClNO₂
• 分子量: 197.621
• InChiKey: RABSXIVOPJYJGM-UHFFFAOYSA-N

物化性质

• 熔点：
  76-78 °C(Solv: hexane (110-54-3))
• 沸点：
  319.8±52.0 °C(Predicted)
• 密度：
  1.43±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  41.8
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-(4-chlorophenyl)-5-hydroxy-4,5-dihydroisoxazole 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 以76%的产率得到(3E)-3-(4-chlorophenyl)-3-hydroxyiminopropan-1-ol
  参考文献：
  名称：

  Efficient and Regioselective Synthesis of 5-Hydroxy-2-isoxazolines: Versatile Synthons for Isoxazoles, β-Lactams, and γ-Amino Alcohols

  摘要：

  An efficient and highly regioselective protocol was developed for the preparation of 5-hydroxy-2-isoxazolines, which have been proved to be versatile synthons for isoxazles, beta-hydroxy oximes, and gamma-amino alcohols. beta-Lactams, commonly embedded in the skeletons of bioactive natural products, were also synthesized in two steps from beta-hydroxy oximes, providing a new strategy for the synthesis of this kind of compounds.

  DOI：

  10.1021/jo1000065
• 作为产物：
  描述：

  3-(4-chlorophenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5-dihydro-1,2-oxazole 在 disodium hydrogenphosphate 、 potassium dihydrogenphosphate 、 双氧水 作用下， 以 四氢呋喃 为溶剂， 以62%的产率得到3-(4-chlorophenyl)-5-hydroxy-4,5-dihydroisoxazole
  参考文献：
  名称：

  二。1,3-偶极环加成成不饱和硼酸酯。硼酸化的2-异恶唑啉的合成。一些环加合物转化为5-羟基-2-异恶唑啉，5-羟甲基-2-异恶唑啉和异恶唑

  摘要：

  通过腈氧化物与乙烯基和烯丙基硼酸酯的1，3-环加成反应制备了各种硼化的2-异恶唑啉。考察了取代基对反应性，区域选择性和立体选择性的影响，并描述了环加合物氧化的一些实例。

  DOI：

  10.1016/0022-328x(95)05531-s

文献信息

• Reaction of β-dimethylaminovinyl ketones with hydroxylamine: A simple and useful method for synthesis of 3- and 5-substituted isoxazoles
  作者：Fernanda A. Rosa、Pablo Machado、Helio G. Bonacorso、Nilo Zanatta、Marcos A. P. Martins

  DOI：10.1002/jhet.5570450337

  日期：2008.5

  The regioselective synthesis of 3- and 5-substituted-isoxazoles from the reaction of β-dimethyl-aminovinyl ketones [R-C(O)CHCH-NMe2, where R Ph, MeO-4-C6H4, F-4-C6H4, Cl-4-C6H4, Br-4-C6H4, O2N-4-C6H4, fur-2-yl, thien-2-yl, pyrrol-2-yl, Et and CCl3] and hydroxylamine hydrochloride varying only the reaction conditions (with and without the addition of pyridine) is reported.

  由β-二甲基氨基乙烯基酮[RC（O）CH CH-NMe 2，其中R Ph，MeO-4-C 6 H 4，F-4- C 6 H 4，Cl-4-C 6 H 4，Br-4-C 6 H 4，O 2 N-4-C 6 H 4，呋喃-2-基，噻吩-2-基，吡咯-2-报道了仅改变反应条件（添加和不添加吡啶）的烷基，Et和CCl 3 ]和盐酸羟胺。
• Effect of the aryl group substituent in the dimerization of 3-arylisoxazoles to syn 2,6-diaryl-3,7-diazatricyclo[4.2.0.02,5]octan-4,8-diones induced by LDA
  作者：Leonardo Di Nunno、Paola Vitale、Antonio Scilimati

  DOI：10.1016/j.tet.2008.09.063

  日期：2008.12

  3-Arylisoxazoles react with LDA in THF at 0 degrees C affording syn-2,6-diaryl-3,7-diazatricyclo[4.2.0.0(2,5)]octan-4,8-diones (bis-azetidinones), via stereoselective dimerization of an azetinone anion intermediate. A fragmentation reaction affording arylnitriles may compete with electronic and steric effects of the substituent present in the aryl group being pivotal in determining the outcome of this reaction. An interesting behaviour with LDA of arylnitriles arising from the fragmentation reaction of some 3-arylisoxazoles was also observed. N,N-Diisopropylaminobenzonitriles were in fact formed (plausibly via a benzyne mechanism) from 3-(4-chlorophenyl)isoxazole and 3-(2-chlorophenyl)isoxazole, whereas 3-(2-methylphenyl)isoquinolin-1-amine was isolated starting from 3-(2-methylphenyl)isoxazole and LDA. (C) 2008 Elsevier Ltd. All rights reserved.