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Stereocontrolled formation of amino acids and N-heterocycles bearing a quaternary chiral carbon
被引:42
|作者:
Roy, S
[1
]
Spino, C
[1
]
机构:
[1] Univ Sherbrooke, Dipartimento Chim, Sherbrooke, PQ J1K 2R1, Canada
关键词:
D O I:
10.1021/ol053061g
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Stereocontrolled formation of tertiary or quaternary chiral carbons bearing nitrogen was achieved using the [3,3]-sigmatropic rearrangement of cyanate to isocyanate as a key element. A short and highly selective sequence of reactions, starting from p-menthane-3-carboxaldehyde, was developed leading to alpha,alpha-dialkylated alpha-amino acids or N-heterocycles, depending on the method of cleavage of the auxiliary.
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页码:939 / 942
页数:4
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