SYNTHESIS, TAUTOMERISM AND STEREOCHEMISTRY OF SPIROPYRAZOLINES

被引：28

作者：

TOTH, G

LEVAI, A

DUDDECK, H

机构：

[1] TECH UNIV BUDAPEST,INST GEN & ANALYT CHEM,H-1111 BUDAPEST,HUNGARY

[2] LAJOS KOSSUTH UNIV,DEPT ORGAN CHEM,H-4010 DEBRECEN,HUNGARY

[3] RUHR UNIV BOCHUM,FAK CHEM,W-4630 BOCHUM 1,GERMANY

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 1992年 / 30卷 / 03期

关键词：

H-1 AND C-13 NMR; SPIROPYRAZOLINES; CONFORMATIONAL EQUILIBRIA; REACTION MECHANISM;

D O I：

10.1002/mrc.1260300308

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

1,3-Dipolar cycloaddition of (E)- and (Z)-arylidene-1-tetralone derivatives affords trans- and cis-spiro-1-pyrazolines, respectively, regio- and stereo-selectively in a one-step reaction. These rearrange into spiro-2-pyrazolines on proton catalysis. The relative configurations and conformations of the spiropyrazolines were elucidated by different NMR methods.

引用

页码：235 / 239

页数：5

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