rac-2,2-dimethyl-4-(diphenylmethyl)oxazolidine | 144899-46-7

• 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: rac-2,2-dimethyl-4-(diphenylmethyl)oxazolidine
• 英文别名: 4-Benzhydryl-2,2-dimethyl-1,3-oxazolidine
• CAS: 144899-46-7
• 化学式: C₁₈H₂₁NO
• 分子量: 267.371
• InChiKey: UJTXTOPFONWRQV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  21.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  rac-2,2-dimethyl-4-(diphenylmethyl)oxazolidine 、 丙烯酰氯 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以81%的产率得到rac-3-acryloyl-5,5-pentamethylene-4-(diphenylmethyl)oxazolidine
  参考文献：
  名称：

  New chiral auxiliaries based on conformation control, a C2-symmetric 2,2-dimethylimidazolidine and 4-chiral, 2,2-dialkyloxazolidines. Synthesis and conformational analysis of acrylamide derivatives

  摘要：

  New chirality-controlling auxiliaries, a C2-symmetric 2,2-dimethylimidazolidine and 4-chiral 2,2-dialkyloxazolidines, are readily prepared from a C2-SYMMetriC 1,2-ethanediamine and naturally occurring alpha-amino acids, respectively. Conformational analysis of their N-acryloyl derivatives has been carried out on the basis of dynamic H-1 NMR spectroscopy and molecular mechanics calculations using MM2 program. Proper choice of the substituents at 2-, 4-, and 5-positions, in the oxazolidine cases, leads to the most effective chiral shielding of a diastereotopic acryloyl face.

  DOI：

  10.1016/s0040-4020(01)89439-4
• 作为产物：
  描述：

  2-amino-3,3-diphenyl-1-propanol 、 丙酮 在 对甲苯磺酸 作用下， 反应 12.0h， 生成 rac-2,2-dimethyl-4-(diphenylmethyl)oxazolidine
  参考文献：
  名称：

  New chiral auxiliaries based on conformation control, a C2-symmetric 2,2-dimethylimidazolidine and 4-chiral, 2,2-dialkyloxazolidines. Synthesis and conformational analysis of acrylamide derivatives

  摘要：

  New chirality-controlling auxiliaries, a C2-symmetric 2,2-dimethylimidazolidine and 4-chiral 2,2-dialkyloxazolidines, are readily prepared from a C2-SYMMetriC 1,2-ethanediamine and naturally occurring alpha-amino acids, respectively. Conformational analysis of their N-acryloyl derivatives has been carried out on the basis of dynamic H-1 NMR spectroscopy and molecular mechanics calculations using MM2 program. Proper choice of the substituents at 2-, 4-, and 5-positions, in the oxazolidine cases, leads to the most effective chiral shielding of a diastereotopic acryloyl face.

  DOI：

  10.1016/s0040-4020(01)89439-4