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Vinylogous Mannich reactions: Some theoretical studies on the origins of diastereoselectivity
被引:47
|作者:
Bur, SK
[1
]
Martin, SF
[1
]
机构:
[1] Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA
关键词:
D O I:
10.1021/ol006464j
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
[GRAPHICS] Ab initio calculations at the RHF/3-21G* level were used to investigate the limiting transition states in the addition of 2-methoxyfuran to a pyrrolinium ion. Four stationary points were found on the potential energy surface with relative energies of three Diels-Alder, 0.0 kcal/mol; erythro open, 0.9 kcal/mol; erythro Diels-Alder, 1.3 kcal/mol; and three open, 1.8 kcal/mol.
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页码:3445 / 3447
页数:3
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