A NOVEL-APPROACH TO THE ERGOT ALKALOID SKELETON

被引:0
|
作者
BARBEY, S [1 ]
MANN, J [1 ]
机构
[1] UNIV READING,DEPT CHEM,READING RG6 2AD,BERKS,ENGLAND
关键词
INTRAMOLECULAR [3+2] CYCLOADDITION; ALLYL CATION;
D O I
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中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
We describe a ten stage synthesis of an advanced intermediate for elaboration into ergot alkaloids, from 4-carbomethoxyindole. The key step involved an intramolecular cyclisation involving the allyl cation derived from N-benzenesulphonyl, 3-(3'-methoxyprop-2'-en-1'-yl), 4-(1'-hydroxy-2'trimethylsilylmethyl-prop-2'-en-1'-yl)-indole.
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页码:27 / 28
页数:2
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