4-Methyl-tetrahydro-[1,3]oxazin-2-on | 54953-80-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 恶嗪烷类
• 英文名称: 4-Methyl-tetrahydro-[1,3]oxazin-2-on
• 英文别名: 4-methyl-1,3-oxazinan-2-one；4-methyl-tetrahydro-[1,3]oxazin-2-one；Tetrahydro-4-methyl-2H-1,3-oxazin-2-one
• CAS: 54953-80-9
• 化学式: C₅H₉NO₂
• mdl: MFCD19217431
• 分子量: 115.132
• InChiKey: ULPCODYRJFRNLR-UHFFFAOYSA-N

物化性质

• 熔点：
  91 °C
• 沸点：
  120-135 °C(Press: 0.1 Torr)
• 密度：
  1.046±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-Methyl-tetrahydro-[1,3]oxazin-2-on 在 N-溴代丁二酰亚胺(NBS) 、 palladium diacetate 、 caesium carbonate 、 4,5-双二苯基膦-9,9-二甲基氧杂蒽 作用下， 以 1,4-二氧六环 、 N,N-二甲基甲酰胺 为溶剂， 生成 methyl 5-bromo-2-methoxy-4-(4-methyl-2-oxo-1,3-oxazinan-3-yl)benzoate
  参考文献：
  名称：

  钯催化的NH和C（sp 3）-H芳基化反应合成三环氮杂环

  摘要：

  一系列的三环氮杂环是通过直接和有效的方式合成的，其序列涉及钯催化的N-芳基化和C（sp 3）-H芳基化为关键步骤。尽管C（sp 3）–H芳基反应可有效地提供稠合的6,5,6-元环系统，但形成更易拉紧的6,5,5-元环系统却更具挑战性，并且需要对反应进行微调情况。

  DOI：

  10.1021/ol2031763
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 生成 4-Methyl-tetrahydro-[1,3]oxazin-2-on
  参考文献：
  名称：

  A Hungarian example for handsearching specialized national healthcare journals of small countries for controlled trials. Is it worth the trouble?

  摘要：

  AbstractThe objective of this study was to determine whether a Hungarian language journal of clinical neuroscience, which is not indexed in medline, contains any reports of randomized or quasi‐randomized clinical trials that are not also reported in medline‐indexed publications. A cover‐to‐cover handsearch was performed of the journal Clinical Neuroscience/Ideggyógyászati Szemle, the official journal of Hungarian societies of neurology, neurosurgery, psychiatry and related clinical neurosciences, from its first volume in 1950 to the end of 1998; and a search of medline for other reports of the trials identified. Clinical trials in which patients were allocated to interventions by randomized, quasi‐randomized or possibly randomized means were identified. Controlled trials were tabulated and coded as randomized controlled trials or controlled clinical trials according to the definitions of the Handsearch Manual of the Cochrane Collaboration. We identified three randomized and eight quasi‐randomized trials. Six of the 11 trials were not reported in medline indexed publications.In conclusion, to obtain a comprehensive controlled trials register, specialized healthcare journals printed in small numbers in the national languages of small countries should be searched.

  DOI：

  10.1046/j.1365-2532.2000.00280.x

文献信息

• Cyclizations of Azidoformates to Tetrahydro-1,3-oxazin-2-ones and Oxazolidin-2-ones
  作者：Paul Francis Alewood、Michael Benn、Rolf Reinfried

  DOI：10.1139/v74-608

  日期：1974.12.15

  Thermolysis of azidoformates in polychloromethane solvents was found to be superior to photolysis as a method for preparing perhydro-1,3-oxazin-2-ones and oxazolidin-2-ones. For some substrates preparatively useful yields of the oxazinones could be obtained but more usually oxazolidone formation competed effectively and often was predominant.

  作为制备全氢-1,3-恶嗪-2-酮和恶唑烷-2-酮的方法，发现在聚氯甲烷溶剂中叠氮甲酸酯的热解优于光解。对于某些底物，可以获得有用的恶嗪酮产率，但更常见的是恶唑烷酮的形成有效竞争并且通常占优势。
• Thermal reactions of azidoformates
  作者：David S. Breslow、Thomas J. Prosser、Arnold F. Marcantonio、C. Arthur. Genge

  DOI：10.1021/ja00986a025

  日期：1967.5
• DE713467
  申请人：——

  公开号：——

  公开（公告）日：——
• CN115872923
  申请人：——

  公开号：——

  公开（公告）日：——