Cascade and sequential palladium catalysed cyclisation-azide capture-1,3-dipolar cycloaddition route to complex triazoles.

被引:59
作者
Gardiner, M
Grigg, R [1 ]
Sridharan, V
Vicker, N
机构
[1] Univ Leeds, Sch Chem, Leeds LS2 9JT, W Yorkshire, England
[2] Rhone Poulenc Rorer, Dagenham Res Ctr, Dagenham RM10 7XS, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1016/S0040-4039(97)10541-X
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Palladium catalysed processes involving sequential cyclisation of aryl iodides onto proximate allenes with capture by NaN3 (and NaO2SPh) followed by a 1,3-dipolar cycloaddition reaction utilizing DMAD, methyl propiolate and norbomadiene are described. When utilising the latter, the sequence can be carried out as a one-pot protocol which terminates with a retro Diels-Alder reaction. (C) 1997 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:435 / 438
页数:4
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