Reactivity of (Z)-4-arylidene-5(4H)-oxazolones:: [4+2] cycloaddition versus [4+3] cycloaddition/nucleophilic trapping

被引:25
作者
Avenoza, A [1 ]
Busto, JH
Cativiela, C
Peregrina, JM
机构
[1] Univ La Rioja, Dept Quim, Grp Sintesis Quim La Rioja, UA CSIC, Logrono 26006, Spain
[2] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Dept Quim Organ, Zaragoza 50009, Spain
关键词
oxazolones; Diels-Alder reactions; cycloadditions; polycyclic heterocyclic compounds; X-ray crystal structures;
D O I
10.1016/S0040-4039(02)00744-X
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The use of different aluminum derivatives in the reaction between cyclopentadiene and (Z)-2-phenyl-4-arylidene-5(4H)-oxazolones, and in particular the use of different equivalents of the reagent, allows the modulation of the synthesis of the norbornane skeleton by a [4+2] cycloaddition or the more interesting bicyclo[3.2.1]octane framework by a [4+3] cycloaddition followed by nucleophilic trapping of the ionic dipole cycloadduct with cyclopentadiene. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码:4167 / 4170
页数:4
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