反应 #1880966

反应方程式

( 3 )

7-(3-methylbutyl)benzo[b][1,4]dioxepin-3-one

( 6 )

7-Pentylbenzo[b][1,4]dioxepin-3-one

( 5 )

7-(2-methylbutyl)benzo[b][1,4]dioxepin-3-one

( 2 )

1-methyl-2,3-dihydro-1H-5,9-dioxacyclohepta[f]inden-7-one

( 9 )

7-(3-methylpentyl)benzo[b][1,4]dioxepin-3-one

→

7-(2-Methylpentyl)benzo[b][1,4]dioxepin-3-one

反应条件

实验过程

Odor: Marine, floral-aldehyde odor.—IR (film): ν=1501/1434/1460/1580 cm−1 (ν C═C, Ar), 1265/1303/1201 cm−1 (ν ring), 1049 cm−1 (ν C—O—C), 1740 cm−1 (ν C═O),—1H-NMR (CDCl3): δ=0.83 (d, 3H, 2′-Me), 0.88 (t, J=7.0 Hz, 3H, 5′-H3), 1.11–1.40 (m, 4H, 3′-,4′-H2), 1.68 (mc1 1H, 2′-H), 2.26 (dd, J=13.6, 8.4 Hz, 1H, 1′-Hb), 2.54 (dd, J=13.6, 6.0 Hz, 1H, 1′-Ha), 4.69 (d, J=8.4 Hz, 4H, 2-,4-H2), 6.73 (dd, J=8.0, 2.0 Hz, 1H, 8-H), 6.78 (d, J=2.0 Hz, 1H, 6-H), 6.89 (d, J=8.0 Hz, 1H, 9-H).—13C-NMR (CDCl3): δ=14.15 (q, C-5′), 19.17 (q, 2′-Me), 20.02 (t, C-4′), 34.50 (d, C-2′), 38.77 (t, C-3′), 42.61 (t, C-1′), 75.36/75.63 (2t, C-2,-4) 120.30/121.04 (2d, C-6,-9), 124.28 (d, C-8), 137.61 (s, C-7), 146.05/147.70 (2s, C-5a,-9a), 204.77 (s, C-3).—MS (EI): m/z (%)=77 (9) [C6H5+], 91 (6) [C7H7+], 135 (5) [M+-C5H11—C2H2O], 149 (3) [M+-C5H11—CO], 177 (100) [M+-C5H11], 205 (2) [M+-C3H7], 248 (21) [M+].

来源