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Diastereoselective Synthesis of Novel Spiro-Isoxazolidines via [3+2] Cycloaddition
被引:4
|作者:
Shah, Sakshi
[1
]
Badru, Rahul
[1
]
Singh, Baldev
[1
]
机构:
[1] Punjabi Univ, Dept Chem, Patiala 147002, Punjab, India
关键词:
3+2] Cycloaddition;
N-arylmaleimides;
N-cyclohexylidene n-phenyl nitrone;
spiro-isoxazolidines;
ENANTIOPURE CYCLIC NITRONE;
1,3-DIPOLAR CYCLOADDITION;
DERIVATIVES;
NUCLEOSIDES;
D O I:
10.1080/00397911.2011.622063
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
In this protocol, synthesis of novel 2,5-diphenyl-3,3-spiropentamethylene-5H-2,3,3a,6a-tetrahydropyrrolo[3,4-d]isoxazole-4,6-diones through [3 + 2] cycloaddition of N-cyclohexylidene N-phenyl nitrones with cyclic dipolarophiles is described. 1,3-Dipolar cycloaddition of nitrones with substituted N-arylmaleimides gives exclusively endo-diastereoisomers of spiro-isoxazolidines and their stereochemistry was assigned using 1H NMR and 1H-1H correlation spectroscopic studies.
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页码:1073 / 1082
页数:10
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