3-methylflavone derivatives which are useful in the treatment of allergies, asthma and inflammation.
3-甲基黄酮衍生物对于过敏、哮喘和炎症的治疗具有用处。
Bougault, Annales de Chimie (Cachan, France), 1908, vol. <8> 15, p. 501
作者:Bougault
DOI:——
日期:——
Acetylphosphonate as a Surrogate of Acetate or Acetamide in Organocatalyzed Enantioselective Aldol Reactions
作者:Jie Guang、Qunsheng Guo、John Cong-Gui Zhao
DOI:10.1021/ol301270w
日期:2012.6.15
Highly enantioselective aldol reactions of acetylphosphonates and activated carbonyl compounds was realized with cinchona alkaloid derived catalysts, in which the acetylphosphonate was directly used as an enolate precursor for the first time. The aldol product obtained was converted in situ to its corresponding ester or amide through methanolysis or aminolysis. The overall process may be viewed as formal highly enantioselective acetate or acetamide aldol reactions, which are very difficult to achieve directly with organocatalytic methods.