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Natural Abundance17O NMR Study of Substituted α,α,α-Trifluoromethoxybenzenes

 

作者: DavidW. Boykin,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1991）
卷期: Volume 24, issue 7-8  

页码: 943-949

 

ISSN:0038-7010

 

年代: 1991

 

DOI:10.1080/00387019108020673

 

出版商: Taylor & Francis Group

 

关键词: 17O NMR spectroscopy;trifluoromethoxy group

 

数据来源: Taylor

 

摘要:

Natural abundance17O NMR chemical shift data formeta- andpara-substitued α,α,α-trifluoromethoxybenzenes recorded in acetonitrile at 75° C are reported. The17O NMR signals for the trifluoromethoxy compounds are deshielded by greater than 65 ppm compared to analogous methoxy compounds. A quantitative relationship between17O NMR chemical shifts for the trifluoromethoxy and methoxy benzenes is reported.

 

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