N-p-Toluenesulfonyl-6,6-dimethyl-4-(1-allylvinyl)tetrahydro-1,3-oxazin-2-one

• 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: N-p-Toluenesulfonyl-6,6-dimethyl-4-(1-allylvinyl)tetrahydro-1,3-oxazin-2-one
• 英文别名: 6,6-Dimethyl-3-(4-methylphenyl)sulfonyl-4-penta-1,4-dien-2-yl-1,3-oxazinan-2-one
• 化学式: C₁₈H₂₃NO₄S
• 分子量: 349.451
• InChiKey: BQECIWFCNBCAMK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  72.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3-氯丙烯 、 1,1-dimethyl-3,4-pentadienyl tosylcarbamate 在 二(氰基苯)二氯化钯 sodium monochloroacetic acid 作用下， 以 甲醇 为溶剂， 反应 25.0h， 以52%的产率得到N-p-Toluenesulfonyl-6,6-dimethyl-4-(1-allylvinyl)tetrahydro-1,3-oxazin-2-one
  参考文献：
  名称：

  Palladium-Catalyzed Stereoselective Allylaminocyclization and 1,3-Butadien-2-ylaminocyclization of Allenyl Tosylcarbamates

  摘要：

  Palladium [PdCl2(PhCN)(2) or Pd-2(dba)(3) . CHCl3 (dba = dibenzylideneacetone)], in the presence of a base (Et(3)N or K2CO3) in THF at room temperature, catalyzes an allylaminocyclization of 2,3-butadienyl tosylcarbamates 1 with allylic chlorides to selectively provide trans-4,5-disubstituted 2-oxazolidinones 2 in good yields. Under similar conditions, Pd(PPh(3))(4) catalyzes an N-allylation of 1 to give 3. A limited number of 3,4-pentadienyl tosylcarbamates 5 undergo the allylaminocyclization to provide tetrahydro-1,3-oxazin-2-ones 6. In the absence of an allylic chloride, Pd(PPh(3))(4) and PdCl2(PhCN)(2) catalyze a formal dimerization of 1 to provide C-4-triene-substituted 2-oxazolidinones 4 in moderate to good yields.

  DOI：

  10.1021/jo00117a031

文献信息

• Palladium-Catalyzed Stereoselective Allylaminocyclization and 1,3-Butadien-2-ylaminocyclization of Allenyl Tosylcarbamates
  作者：Masanari Kimura、Shuji Tanaka、Yoshinao Tamaru

  DOI：10.1021/jo00117a031

  日期：1995.6

  Palladium [PdCl2(PhCN)(2) or Pd-2(dba)(3) . CHCl3 (dba = dibenzylideneacetone)], in the presence of a base (Et(3)N or K2CO3) in THF at room temperature, catalyzes an allylaminocyclization of 2,3-butadienyl tosylcarbamates 1 with allylic chlorides to selectively provide trans-4,5-disubstituted 2-oxazolidinones 2 in good yields. Under similar conditions, Pd(PPh(3))(4) catalyzes an N-allylation of 1 to give 3. A limited number of 3,4-pentadienyl tosylcarbamates 5 undergo the allylaminocyclization to provide tetrahydro-1,3-oxazin-2-ones 6. In the absence of an allylic chloride, Pd(PPh(3))(4) and PdCl2(PhCN)(2) catalyze a formal dimerization of 1 to provide C-4-triene-substituted 2-oxazolidinones 4 in moderate to good yields.