4-phenyl-1-azetidin-2-thione | 1352447-97-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: 4-phenyl-1-azetidin-2-thione
• 英文别名: 4-Phenylazetidine-2-thione
• CAS: 1352447-97-2
• 化学式: C₉H₉NS
• 分子量: 163.243
• InChiKey: ZRVJEWZQKUNDPI-UHFFFAOYSA-N

物化性质

• 沸点：
  271.6±43.0 °C(Predicted)
• 密度：
  1.21±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  11
• 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：
  44.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-phenyl-1-azetidin-2-thione 以 二氯甲烷 、 乙腈 为溶剂， 反应 2.0h， 生成 5-ethylthio-2,3,7-triphenyl-1-azabicyclo[3.2.0]hept-2-en-4-one
  参考文献：
  名称：

  Pyridines from Azabicyclo[3.2.0]hept-2-en-4-ones through a Proposed Azacyclopentadienone

  摘要：

  Pyridines have been formed by heating azabicyclo[3.2.0]hept-2-en-4-ones in toluene. The generation of a 3-azacyclopentadienone intermediate via a [2 + 2]-cycloreversion Is proposed as the key step. A Diels-Alder reaction of a styrene, extrusion of carbon monoxide, and loss of hydrogen then gives the pyridine. The process parallels the well-known synthesis of benzenes from cyclopentadienones. The azabicyclo[3.2.0]hept-2-en-4-ones were synthesized from the reaction between readily available cyclopropenones and 1-azetines, In which the cyclopropenones behave as all-carbon 1,3-dipolar equivalents.

  DOI：

  10.1021/ol202924s
• 作为产物：
  描述：

  4-苯基-2-氮杂环丁酮 在 劳森试剂 作用下， 以 四氢呋喃 为溶剂， 反应 1.33h， 以96%的产率得到4-phenyl-1-azetidin-2-thione
  参考文献：
  名称：

  Pyridines from Azabicyclo[3.2.0]hept-2-en-4-ones through a Proposed Azacyclopentadienone

  摘要：

  Pyridines have been formed by heating azabicyclo[3.2.0]hept-2-en-4-ones in toluene. The generation of a 3-azacyclopentadienone intermediate via a [2 + 2]-cycloreversion Is proposed as the key step. A Diels-Alder reaction of a styrene, extrusion of carbon monoxide, and loss of hydrogen then gives the pyridine. The process parallels the well-known synthesis of benzenes from cyclopentadienones. The azabicyclo[3.2.0]hept-2-en-4-ones were synthesized from the reaction between readily available cyclopropenones and 1-azetines, In which the cyclopropenones behave as all-carbon 1,3-dipolar equivalents.

  DOI：

  10.1021/ol202924s

文献信息

• β-Lactams as Formal Dipoles through Amide-Bond Activation
  作者：Vincent Barbier、Jérôme Marrot、François Couty、Olivier R. P. David

  DOI：10.1002/ejoc.201501342

  日期：2016.1

  Activation of β-lactams can be achieved by simple Lewis-base catalysis to trigger an unprecedented reaction based on the formal dipolar behaviour of a strained amide bond. A new synthetic route for 1,3-oxazinan-6-ones is presented by reaction of β-lactams with ethylglyoxylate, which after methodological optimizations identified 4-pyrrolidinopyridine as the catalyst of choice in aprotic polar solvents

  β-内酰胺的活化可以通过简单的路易斯碱催化来实现，以基于张力酰胺键的形式偶极行为触发前所未有的反应。β-内酰胺类与乙醛酸乙酯反应，提出了一种新的 1,3-恶嗪喃-6-酮合成路线，经过方法优化后确定 4-吡咯烷基吡啶为非质子极性溶剂中的首选催化剂。还根据为这种转变确定的内在局限性讨论了机械细节。