Synthesis of isoxazolyl pyrrolo [3,4-d]-7,8-dihydropyrazoles by [3+2] cycloaddition of isoxazolyl maleimides with nitrileimines

被引：0

作者：

Rajanarendar, E ^{[1
]}

Ramu, K ^{[1
]}

Rao, EK ^{[1
]}

机构：

[1] Kakatiya Univ, Dept Chem, Warangal 506009, Andhra Pradesh, India

来源：

INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY | 2005年 / 15卷 / 01期

关键词：

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The reaction of nitrileimines generated in situ from the arylhydrazones in the presence of chloramine-T with isoxazolyl maleimide I results in isoxazolyl pyrrolo [3,4-d]-7,8dihydro pyrazoles 2. The structure of compounds (2a-g) were confirmed by elemental analysis, IR, PMR and mass spectral data. The dienophile 1, anthracene and anhyd AlCl3 in CH2Cl2 at room temp yielded Diels-Alder adduct i.e. 9,10-dihydro-anthracene9,10-endo-N-isoxazolyl maleimide 3.

引用

页码：23 / 26

页数：4

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