Tris(trimethylsilyl) silane: an unprecedented enhancement in the diastereoselectivity of radical cyclisations to give 2,4-disubstituted piperidines

被引:14
作者
Gandon, LA [1 ]
Russell, AG [1 ]
Snaith, JS [1 ]
机构
[1] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England
关键词
D O I
10.1039/b409714a
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Cyclisation of bromides 4a-f mediated by tributyltin hydride affords predominantly the trans piperidines 5a-f with modest diastereomeric ratios, while cyclisation with tris(trimethylsilyl)silane affords the same products with diastereomeric ratios of up to 99:1.
引用
收藏
页码:2270 / +
页数:2
相关论文
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