平成26年度スペクトル解析演習期末試験解答

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A
c
O
b
N
Ha
e
d
N-(2-methoxyethyl)methylamine
C4H11NO (MW = 89), Nitrogen rule
(odd)
B
d
c
b
c
OH a
d
c
3-phenyl-2-propyn-1-ol
C9H8O (MW = 132)
C
a
b
d
c
Br
e
3-bromo-o-xylene
C8H9Br (MW = 184), Br isotope
D
O
O
f
e
O
d
b
c
a
ethyl 2-ethyl-3-oxobutyrate
C8H14O3 (MW = 158)
E
O
b
c
a
OHd
Cl
(R)-2-chlorobutyric acid
C4H7ClO2 (MW = 122), Cl isotope
F
c
O
e
d
b
a
f
O
3,4-dihydro-2H-1-benzopyran-4-one
C9H8O2 (MW = 148)
G
O
i
O
h
i
g
Hf
d
g
He
c
b
a
cis-3-hexenyl benzoate
C13H16O2 (MW = 204)
δH 3.5 (He, 2H, t),
δH 3.4 (Hd, 3H, s),
δH 2.7 (Hc, 2H, t),
δH 2.4 (Hb, 3H, s),
δH 2.2 (Ha, 1H, exchange)
δH 7.4 (Hd, 2H, d), (d, long range),
δH 7.3 (Hc, 3H, m),
δH 4.5 (Hb, 2H, s) ,
δH 3.6 (Ha, 1H, exchange)
δH 7.3 (He, 1H, d), (d, long range),
δH 7.1 (Hd, 1H, d), (d, long range),
δH 6.9 (Hc, 1H, dd),
δH 2.3 (Hb, 3H, s),
δH 2.3 (Ha, 3H, s)
δH 4.2 (He, 2H, q),
δH 3.3 (Hd, 1H, t),
δH 2.2 (Hd, 3H, s),
δH 1.9 (Hc, 2H, dq),
δH 1.3 (Hb, 3H, t),
δH 0.9 (Ha, 3H, t)
δH 9.4 (Hd, 1H, exchange),
δH 4.3 (Hc, 1H, d),
δH 2.1 (Hb, 2H, dq),
δH 1.1 (Ha, 3H, t)
δH 7.8 (Hf, 1H, d), (d, long range),
δH 7.4 (He, 1H, dd), (d, long range),
δH 7.0 (Hd, 1H, dd), (d, long range),
δH 6.9 (Hc, 1H, d), (d, long range),
δH 4.5 (Hb, 2H, t),
δH 2.8 (Ha, 2H, t)
δH 8.0 (Hi, 2H, d), (d, long range),
δH 7.5* (Hh, 1H, t), (t, long range),
δH 7.5* (Hg, 2H, dd),
δH 5.5 (Hf, 1H, dt, J = 10.0 Hz, J = 6.8 Hz),
(t, long range),
δH 5.4 (He, 1H, dt, J = 10.0 Hz, J = 6.9 Hz),
(t, long range),
δH 4.3 (Hd, 2H, t),
δH 2.5 (Hc, 2H, tq), (d, long range),
δH 2.1 (Hb, 2H, dq), (d, long range),
δH 1.0 (Ha, 3H, t)
* 7.5 ppm, 3H, –1–
3338 N–H
2930 C(sp3)–H
2883 C(sp3)–H
1470 CH3 bending
1450 CH3 bending
1106 C–O or C–N
3336 (broad) O–H
3058 C(sp2)–H
2918 C(sp3)–H
2239 C≡C
1598 C6H4
1498 C6H4
1033 C–O
3049 C(sp2)–H
2946 C(sp3)–H
1561 C6H3
1465 CH3 bending
1452 CH3 bending
699 C–Br
2973 C(sp3)–H
1739 C=O
1717 C=O
1252 C=O+–
1053 C–O
1026 C–O
3300–2500 CO2H
2978 C(sp3)–H
1725 C=O
1205 C=O+–
827 C–Cl
3069 C(sp2)–H
2986 C(sp3)–H
1697 C=O
1604 C6H4
1479 C6H4
1256 C=O+–
1039 C–O
3012 C(sp2)–H
2964 C(sp3)–H
1720 C=O
1603 C=C
1585 C6H5
1452 CH3 bending
1271 C=O+–
1071 C–O

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