(+/-)-3-(diethoxymethyl)-3a,6a-dihydrofuro<2,3-d>isoxazole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑啉类
• 英文名称: (+/-)-3-(diethoxymethyl)-3a,6a-dihydrofuro<2,3-d>isoxazole
• 英文别名: (3aS,6aS)-3-(diethoxymethyl)-3a,6a-dihydrofuro[2,3-d][1,2]oxazole
• 化学式: C₁₀H₁₅NO₄
• 分子量: 213.233
• InChiKey: JJRMBFZKPBOTPE-IONNQARKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  49.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (+/-)-3-(diethoxymethyl)-3a,6a-dihydrofuro<2,3-d>isoxazole 在 四氧化锇 、 lithium aluminium tetrahydride 、 4 A molecular sieve 、 Sikkon 、 硫酸 、 碳酸氢钠 、 N-甲基吗啉氧化物 作用下， 以 乙醚 、 乙醇 、 水 、 丙酮 为溶剂， 反应 114.0h， 生成 5-benzyloxycarbonylamino-5-deoxy-1,2-O-isopropylidene-β-L-ido-1,4-furanose
  参考文献：
  名称：

  Total syntheses of (+)- and (−)-1-deoxynojirimycin (1,5-dideoxy-1,5-imino-d- and l-glucitol) and of (+)- and (−)-1-deoxyidonojirimycin (1,5-dideoxy-1,5-imino-d- and l-iditol) via furoisoxazoline-3-aldehydes

  摘要：

  The isoxazoline obtained by 1,3-dipolar cycloaddition of 2,2-diethoxyacetonitrile N-oxide to furan was converted into enantiomerically pure (-)-(3aS,5S,6S,6aR)- and (+)-(3aR,5R,6R,6aS)-3a,5,6,6a-tetrahydro-5,6-isopropylidenedioxyfuro [2,3-d]isoxazole-3-carbaldehyde, (-)-5 and (+)-5, respectively, through resolution with (1S,2S)-1,2-diphenylethylenediamine. The aldehydes 5 are required as latent 1,5-iminohexitol moieties in cross-aldolizations towards imino-C-disaccharides. In order to establish absolute configurations of 5, and to probe the projected uses, (+)-5 was converted into(+)-1-deoxynojirimycin [(+)-1, 3 steps, 58%] and into(-)-1,5-dideoxy-1,5-imino-L-iditol [(-)-2, 4 steps, 40%] adopting stereoselective routes. Similarly, (-)-1,5-dideoxy-1,5-imino-L-glucitol ((-)-1) and (+)-1,5-dideoxy-1,5-imino-D-iditol ((+)-2) were obtained with the same ease. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(98)00287-0
• 作为产物：
  描述：

  呋喃 、 硝基乙醛缩二乙醇 在 diisocyanate 、 三乙胺 作用下， 以76%的产率得到(+/-)-3-(diethoxymethyl)-3a,6a-dihydrofuro<2,3-d>isoxazole
  参考文献：
  名称：

  通过异恶唑啉合成氨基糖：一氧化氮-呋喃加合物是异恶唑啉路线中通往新型氨基糖衍生物的关键中间体

  摘要：

  提出了新的1,3-偶极一氧化氮环化成难于吸附的偶极亲和性呋喃和2-甲基呋喃的新形式。呋喃并恶唑啉加合物6和7已显示出代表新型C 6和C 7氨基糖衍生物衍生物的高度先进而通用的前体，可通过随后的高度立体选择性修饰（添加HO / OCH 3或HO / OH）和/或LiAlH 4还原。

  DOI：

  10.1016/s0040-4020(01)96705-5

文献信息

• Synthesis of amino sugars via isoxazolines the concept and one application: nitrile oxide/furan adducts
  作者：Ingrid Müller、Volker Jäger

  DOI：10.1016/s0040-4039(00)85711-1

  日期：1982.1
• Synthesis of amino sugars via isoxazolines
  作者：Volker Jäger、Ingrid Müller

  DOI：10.1016/s0040-4020(01)96705-5

  日期：1985.1

  cycloadditions to reluctant dipolarophiles furan and 2-methylfuran are presented. The furoisoxazoline adducts 6 and 7 are shown to represent highly advanced, yet versatile precursors for derivatives of novel C6 and C7 amino sugar derivatives, accessible by subsequent highly stereoselective modification (addition of HO/OCH3 or HO/OH) and/or LiAlH4 reduction.

  提出了新的1,3-偶极一氧化氮环化成难于吸附的偶极亲和性呋喃和2-甲基呋喃的新形式。呋喃并恶唑啉加合物6和7已显示出代表新型C 6和C 7氨基糖衍生物衍生物的高度先进而通用的前体，可通过随后的高度立体选择性修饰（添加HO / OCH 3或HO / OH）和/或LiAlH 4还原。
• Total syntheses of (+)- and (−)-1-deoxynojirimycin (1,5-dideoxy-1,5-imino-d- and l-glucitol) and of (+)- and (−)-1-deoxyidonojirimycin (1,5-dideoxy-1,5-imino-d- and l-iditol) via furoisoxazoline-3-aldehydes
  作者：Christophe Schaller、Pierre Vogel、Volker Jäger

  DOI：10.1016/s0008-6215(98)00287-0

  日期：1998.12

  The isoxazoline obtained by 1,3-dipolar cycloaddition of 2,2-diethoxyacetonitrile N-oxide to furan was converted into enantiomerically pure (-)-(3aS,5S,6S,6aR)- and (+)-(3aR,5R,6R,6aS)-3a,5,6,6a-tetrahydro-5,6-isopropylidenedioxyfuro [2,3-d]isoxazole-3-carbaldehyde, (-)-5 and (+)-5, respectively, through resolution with (1S,2S)-1,2-diphenylethylenediamine. The aldehydes 5 are required as latent 1,5-iminohexitol moieties in cross-aldolizations towards imino-C-disaccharides. In order to establish absolute configurations of 5, and to probe the projected uses, (+)-5 was converted into(+)-1-deoxynojirimycin [(+)-1, 3 steps, 58%] and into(-)-1,5-dideoxy-1,5-imino-L-iditol [(-)-2, 4 steps, 40%] adopting stereoselective routes. Similarly, (-)-1,5-dideoxy-1,5-imino-L-glucitol ((-)-1) and (+)-1,5-dideoxy-1,5-imino-D-iditol ((+)-2) were obtained with the same ease. (C) 1998 Elsevier Science Ltd. All rights reserved.