di(naphthalen-1-yl)methyl methyl 2-allylmalonate | 1381800-59-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: di(naphthalen-1-yl)methyl methyl 2-allylmalonate
• CAS: 1381800-59-4
• 化学式: C₂₈H₂₄O₄
• 分子量: 424.496
• InChiKey: IYLNGUJFQGJYHP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.99
• 重原子数：
  32.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  52.6
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  di(naphthalen-1-yl)methyl methyl 2-allylmalonate 在 N-氯代丁二酰亚胺 、 C₃₅H₂₆N₂O₂ 、 copper(II) bis(trifluoromethanesulfonate) 作用下， 以 苯 为溶剂， 生成 di(naphthalen-1-yl)methyl methyl 2-chloro-2-allylmalonate 、 di(naphthalen-1-yl)methyl methyl 2-chloro-2-allylmalonate
  参考文献：
  名称：

  Highly Enantioselective Chlorination of β-Keto Esters and Subsequent S_N2 Displacement of Tertiary Chlorides: A Flexible Method for the Construction of Quaternary Stereogenic Centers

  摘要：

  Highly enantioselective chlorination of beta-oxo esters and subsequent stereospecific substitution of tertiary chlorides are described. Enantioselective chlorination of beta-keto esters and malonates was performed using a chiral Lewis acid catalyst prepared from Cu(OTf)(2) and the newly developed spirooxazoline ligand 2 to yield the desired a-chlorinated products with high enantioselectivity (up to 98% ee). Nucleophilic substitution of the resulting chlorides proceeded smoothly to afford a variety of chiral molecules such as alpha-amino, alpha-allcylthio, and alpha-fluoro esters, without loss of enantiopurity. The results of X-ray crystallographic analysis proved that Walden inversion occurs at the chlorinated tertiary carbon center. These results supported the fact that the substitution proceeds via an S(N)2 mechanism.

  DOI：

  10.1021/ja304806j
• 作为产物：
  描述：

  、 3-溴丙烯 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 生成 di(naphthalen-1-yl)methyl methyl 2-allylmalonate
  参考文献：
  名称：

  Highly Enantioselective Chlorination of β-Keto Esters and Subsequent S_N2 Displacement of Tertiary Chlorides: A Flexible Method for the Construction of Quaternary Stereogenic Centers

  摘要：

  Highly enantioselective chlorination of beta-oxo esters and subsequent stereospecific substitution of tertiary chlorides are described. Enantioselective chlorination of beta-keto esters and malonates was performed using a chiral Lewis acid catalyst prepared from Cu(OTf)(2) and the newly developed spirooxazoline ligand 2 to yield the desired a-chlorinated products with high enantioselectivity (up to 98% ee). Nucleophilic substitution of the resulting chlorides proceeded smoothly to afford a variety of chiral molecules such as alpha-amino, alpha-allcylthio, and alpha-fluoro esters, without loss of enantiopurity. The results of X-ray crystallographic analysis proved that Walden inversion occurs at the chlorinated tertiary carbon center. These results supported the fact that the substitution proceeds via an S(N)2 mechanism.

  DOI：

  10.1021/ja304806j