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- W4205890477 abstract "Natural abundance 17O NMR spectra for 42 aliphatic and 13 cyclic enaminones with tertiary amino groups are reported. The 17O NMR chemical shifts of enaminones depend upon the type, number and position of the substituents. Substituents at C-1 cause shielding, and those at C-2 or C-3 cause deshielding. The 17O NMR data of 4-(N,N-dialkylamino)but-3-en-2-ones correlate well with the 1H–C-2 and the 13C-2 chemical shifts and with the pKa values of the corresponding dialkylamines. The 17O NMR chemical shifts of enaminones are shifted to lower field in non-polar solvents." @default.
- W4205890477 created "2022-01-25" @default.
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- W4205890477 date "1996-08-01" @default.
- W4205890477 modified "2023-09-27" @default.
- W4205890477 title "17O NMR Spectroscopic Study of Tertiary Enaminones" @default.
- W4205890477 doi "https://doi.org/10.1002/(sici)1097-458x(199608)34:8<595::aid-omr941>3.3.co;2-f" @default.
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