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Pyrazoles. III. PMR studies of pyrazoles

 

作者: Clarisse L. Habraken,   H. J. Munter,   J. C. P. Westgeest,  

 

期刊: Recueil des Travaux Chimiques des Pays‐Bas  （WILEY Available online 1967）
卷期: Volume 86, issue 1  

页码: 56-60

 

ISSN:0165-0513

 

年代: 1967

 

DOI:10.1002/recl.19670860108

 

出版商: WILEY‐VCH Verlag

 

数据来源: WILEY

 

摘要:

AbstractSubstituents with electron withdrawing capacities are found to induce a paramagnetic displacement of the chemical shifts of protons and methyl groups in the remaining positions of the pyrazole ring. For the 4‐position this effect is considered to be due primarily to resonance interaction of substituent and pyrazole rin

 

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