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 13C and 1H NMR chemical shifts of substituted 2-benzylidene-1,3-cycloheptanediones

E. Solčániová, P. Hrnčiar, and J. Šraga

Institute of Chemistry, Komenský University, CS-842 15 Bratislava

 

Abstract:   The 13C- and 1H-n.m.r. chemical shifts of substituted 2-benzylidene-1,3-cycloheptanediones have been assigned. Correlations of 13C-n.m.r. sub­stituent chemical shifts of both carbonyl carbons as well as ethylenic carbons with the Hammett substituent constants have been found. The transmission of electronic substituent effects on the chemical shifts of these carbon atoms is discussed.

Full paper in Portable Document Format: 382a217.pdf

 

Chemical Papers 38 (2) 217–221 (1984)

Tuesday, June 25, 2024

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