演習問題解解答１　¹H の帰属

A) hexane

¹H NMR δppm in CDCl₃: 0.90 (6H, t, 6.5, Ha) and 1.30 (8H, m, Hb).

B) ether

¹H NMR δppm in CDCl₃: 1.07 (6H, t, 7.0, Ha) and 3.34 (4H, q, 7.0, Hb).

C) CHCl₃

¹H NMR δppm in CDCl₃: 7.26 (1H, s, Ha).

[EtOH: ¹H NMR δppm in CDCl₃: 1.24 (3H, t, 7.0, Ha), 1.36 (1H, s, Hc), and 3.72 (2H, q, 7.0, Hb).]

D) DMF

¹H NMR δppm in CDCl₃: 2.72 (3H, s, Ha or Hb), 2.82 (3H, s, Hb or Ha), and 7.86 (1H, s, Hc).

E) MeOH

¹H NMR δppm in CDCl₃: 3.24 (3H, s, Ha) and 4.08 (1H, s, Hb).

F) dioxane

¹H NMR δppm in CDCl₃: 3.62 (8H, s, Ha).

G) 2-propanol

¹H NMR δppm in CDCl₃: 1.13 (6H, d, 6.0, Ha), 2.48 (1H, s, Hc), and 3.94 (1H, sept, 6.0, Hb).

H) acetone

¹H NMR δppm in CDCl₃: 1.88 (6H, s, Ha).

I) THF

¹H NMR δppm in CDCl₃: 1.82 (4H, m, Ha) and 3.70 (4H, m, Hb).

J) n-BuOH

¹H NMR δppm in CDCl₃: 0.84 (3H, t, 7.5, Ha), 1.29 (2H, m, Hb), 1.45 (2H, m, Hc), 3.25 (1H, s, He), and 3.51 (2H, t, 7.0, Hd).

K) toluene

¹H NMR δppm in CDCl₃: 2.53 (3H, s, Ha), 7.35 (3H, m, Hb), and 7.43 (2H, m, Hc).

L) EtOH

¹H NMR δppm in CDCl₃: 1.11 (3H, t, 7.0, Ha), 3.52 (1H, s, Hc), and 3.57 (2H, q, 7.0, Hb).

M) pyridine

¹H NMR δppm in CDCl₃: 7.06 (2H, s, Ha), 7.45 (1H, s, Hb), and 8.42 (2H, s, Hc).

N) AcOEt

¹H NMR δppm in CDCl₃: 1.21 (3H, t, 7.0, Ha), 2.00 (3H, s, Hc), and 4.07 (2H, q, 7.0, Hb)