(S)-7-methyl-2-phenylchroman-4-one

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: (S)-7-methyl-2-phenylchroman-4-one
• 英文别名: (S)(+)-7-methyl-2-phenylchroman-4-one；(2S)-7-methyl-2-phenyl-2,3-dihydrochromen-4-one
• 化学式: C₁₆H₁₄O₂
• 分子量: 238.286
• InChiKey: FNOKOVWLKVWYRY-HNNXBMFYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-甲基水杨酸 在 cinchonidine-derived substituted thiourea 哌啶 、 正丁基锂 、 氯化亚砜 、 溶剂黄146 、 二异丙胺 作用下， 以 四氢呋喃 、 甲苯 、 苯 为溶剂， 反应 161.5h， 生成 (S)-7-methyl-2-phenylchroman-4-one
  参考文献：
  名称：

  Catalytic Enantioselective Synthesis of Flavanones and Chromanones

  摘要：

  The enantioselective synthesis of flavanones and chromanones is described. Bifunctional thiourea catalysts promote an asymmetric oxo-conjugate addition to a beta-ketoester alkylidene in high yields with excellent enantioselectivity (80-94% ee) for aryl and alkyl substrates. Decarboxylation of the beta-ketoester proceeds smoothly in a one-pot procedure to afford the enantioenriched flavanones and chromanones.

  DOI：

  10.1021/ja070394v

文献信息

• Tandem intramolecular oxa-Michael addition/decarboxylation reaction catalyzed by bifunctional cinchona alkaloids: facile synthesis of chiral flavanone derivatives
  作者：Hai-Feng Wang、Hua Xiao、Xiao-Wei Wang、Gang Zhao

  DOI：10.1016/j.tet.2011.05.088

  日期：2011.7

  Bifunctional cinchona alkaloids were used to catalyze a tandem intramolecular oxa-Michael addition/decarboxylation reaction of alkylidene β-ketoesters 1, providing a series of flavanone derivatives with up to 97% yield and 93% ee.

  双功能金鸡纳生物碱用于催化亚烷基β-酮酸酯1的串联分子内氧杂-迈克尔加成/脱羧反应，提供了一系列黄烷酮衍生物，收率高达97％，ee高达93％。
• Catalytic Enantioselective Synthesis of Flavanones and Chromanones
  作者：Margaret M. Biddle、Michael Lin、Karl A. Scheidt

  DOI：10.1021/ja070394v

  日期：2007.4.1

  The enantioselective synthesis of flavanones and chromanones is described. Bifunctional thiourea catalysts promote an asymmetric oxo-conjugate addition to a beta-ketoester alkylidene in high yields with excellent enantioselectivity (80-94% ee) for aryl and alkyl substrates. Decarboxylation of the beta-ketoester proceeds smoothly in a one-pot procedure to afford the enantioenriched flavanones and chromanones.