1,3-Dipolar cycloaddition between hetaryl nitrones and methyl acrylate: Theoretical study and application to the synthesis of functionalized pyrrolidines

被引:20
作者
Merino, P [1 ]
Anoro, S [1 ]
Merchan, F [1 ]
Tejero, T [1 ]
机构
[1] Univ Zaragoza, ICMA, Fac Ciencias, Dept Quim Organ, E-50009 Zaragoza, Spain
关键词
isoxazclidine; 2-pyrrolidinone; MO calculation;
D O I
10.3987/COM-99-8826
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The 1,3-dipolar cycloaddition reaction of N-benzyl-C-(hetaryl)nitrones gave preferentially trans-substituted 3,5-disubstituted isoxazolidines (endo approach) which can be further converted into the corresponding 5-hetaryl-3-hydroxy-2-pyrrolidinones. A theoretical study of the cycloaddition reaction by using both semiempirical (AM1, PM3) and ab initio (HF/3-21G, HF/6-31G*//3-21G) methods has also been carried out. In all cases the obtained results are in good qualitative agreement with the experimental observations.
引用
收藏
页码:861 / 875
页数:15
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