peptide catalyst was developed for kineticresolution of a planar-chiral [2.2]paracyclophanederivative through Michaeladdition of nitromethane to an enone substituent on the paracyclophane structure. A helix-based peptide was effective to discriminate the planar chirality of the [2.2]paracyclophane structure, and to convert one enantiomer preferentially into the Michael adduct. By optimizing the peptide
开发了一种树脂负载的肽催化剂,用于通过硝基甲烷与对环芳结构上的烯酮取代基进行迈克尔加成,对平面手性 [2.2] 对环芳衍生物进行动力学拆分。基于螺旋的肽可有效区分 [2.2] 对环芳烷结构的平面手性,并将一种对映异构体优先转化为迈克尔加合物。通过优化螺旋链 N 端的肽序列,获得了高度的对映选择性分辨率。
ELtamany, Elsayed H, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 4, p. 238 - 242