R 1H NMR Spectroscopy 50Hz 50Hz +++ -- ++++++++++ ++++4 9.869,78 2582.46 5 8 (ppm) => Chapter 18 16
Chapter 18 16 1H NMR Spectroscopy =>
R 13C NMR Spectroscopy 44 31 14 24 208 23 30 4424312314 H.C CHCH,CH,CH,CH 30 208 200 180 160 140 120 100 80 60 40 20 0 Chapter 18 17 =>
Chapter 18 17 13C NMR Spectroscopy =>
MS for 2-Butanone 9 CH,-C十CH,CH3 CH3一C=O++CH,CH 43 radical cation acylium ion ethyl radical m/z72 m/z 43 (base peak) loss of 29 0 7 H-tCH.CH] CH,CH2一C=Ot +·CH3 radical cation acylium ion methyl radical mkz 72 mlz 57 loss of 15 100 43 80 0 60 CH3一C-CH,CHg 40 M干 72 20 57 => 1020 30 40 50 60 70 8090100110120130140150160 18 /
Chapter 18 18 MS for 2-Butanone =>
R MS for Butyraldehyde 100 44 80 72 M-28 60 129 M 40 a By 57 CH-CH2CH: 20 0 1020304050 60708090100110'120130'140150'160 m/2 H-C- CH2CH2CH3 →H一C=0t+·CH2CH2CH3 29 m/72 m/z 29 loss of 43 H 57 0- -CH,-CH CH, + CH loss of 15 H H > B.Ycleavage stabilized cation mlz 57 19 McLafferty rearrangement m/z 72 m/z 44 (base peak)loss of 28
Chapter 18 19 MS for Butyraldehyde =>