P-3CR adducts have been obtained in good yields and reasonable diastereoselectivities. Phenyl phosphinic acid has been the catalyst of choice to study the scope of both organocatalyzed multicomponent reactions using a variety of β-lactams, isocyanides, and amines. Highly functionalized U-3CR and P-3CR adducts derived from β-lactams have proved to be useful substrates for the preparation of enantiopure γ-lactams
研究了4-氧杂氮杂
环丁烷-2-甲醛的有机催化U-3CR。另外,首次描述了4-氧杂氮杂
环丁烷-2-甲醛和氮杂
环丁烷-2,3-二酮的有机催化的P-3CR。已以良好的收率和合理的非对映选择性获得了U-3CR和P-3CR加合物。苯
次膦酸一直是研究使用多种β-内酰胺,
异氰酸酯和胺的有机催化多组分反应范围的选择催化剂。事实证明,衍生自β-内酰胺的高度官能化的U-3CR和P-3CR加合物是在酸性或碱性条件下通过N1-C2β-内酰胺开环/环化制备对映体纯的γ-内酰胺和γ-内酯的有用底物。