1-Butyne → (3E,11Z)-3,11-tetradecadienyl acetate

HRID 1944

Reaktionsgleichung

Reaktionsgleichung von HRID 1944
C#CCC.BrCCCCCCOC1CCCCO1.[C:19]([O:22][CH2:23][CH2:24]/[CH:25]=[CH:26]/[CH2:27][CH2:28][CH2:29]/[CH:30]=[CH:31]\[CH2:32][CH2:33][CH2:34][CH2:35][CH3:36])(=[O:21])[CH3:20].O1CCCCC1OCCC#CCCC/C=C\C/C=C\CC.C(OCC/C=C/CCC/C=C\C/C=C\CC)(=O)C.C[Si](C)(C)OCCCCCCC/C=C\C/C=C\CC.O1CCCCC1OCCC/C=C\CCCCC>C(Cl)(Cl)(Cl)Cl>[C:19]([O:22][CH2:23][CH2:24]/[CH:25]=[CH:26]/[CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32]/[CH:33]=[CH:34]\[CH2:35][CH3:36])(=[O:21])[CH3:20]

Komponenten

9

Edukt 7

HCID 78461-ButyneHCID 1038602-[(6-bromohexyl)oxy]tetrahydro-2H-pyran2×HCID 9992319Tetradeca-3,8,11-trienyl acetate, (3E,8Z,11Z)-HCID 105387863E,8Z-Tetradecadienyl acetateHCID 10989926(8Z,11Z)-1-(tetrahydropyran-2-yloxy)-8,11-tetradecadien-3-yneHCID 67591886(4Z)-1-(tetrahydropyran-2-yloxy)-4-decene2×HCID 86752267(8Z,11Z)-trimethylsiloxy-8,11-tetradecadiene

Produkt 1

HCID 86752266(3E,11Z)-3,11-tetradecadienyl acetateAusbeute 15 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 5943Carbon TetrachlorideLösungsmittel

Versuchsvorschrift

Starting from 1-butyne and 1-bromo-6-(tetrahydropyran-2-yloxy)-hexane (22), the (3E,11Z)-3,11-tetradecadien-1-yl acetate (30) was prepared by a synthetic route similar to that used for the preparation of (3E,8Z)-3,8-tetradecadien-1-yl acetate (21), as depicted in the following scheme. ##STR18## The yield was 15% [17 mg; 96% isomeric purity (GC)] based on the starting material, 1-bromo-6-(tetrahydropyran-2-yloxy)hexane (22). 1H NMR (500 MHz) δ: 5.51 (dtt, J=15.1, 6.8, 6.8, 1.2, 1.5 Hz, 1H, =CH -3), 5.35 (m, 3H, CH=CH -4, 11, 12), 4.06 (t, J=6.8, 6.8 Hz, 2H, CH2 -1), 2.31 (dddt, J=1.2, 1.2, 6.8, 6.8, 6.8 Hz, 2H, CH2 -2), 2.05 (s, 3H, COCH3), 2.02 (m, 6H, CH2 -5, 10, 13), 1.36-1.24 (m, 6H, CH2 -6, 7, 8, 9), 0.95 (t, J=7.3, 7.6 Hz, 3H, CH3). 13 C NMR (100.6 MHz) δ: 171.1 (C=O), 133.6 (=CH-3), 131.6 (=CH-12), 129.3 (=CH-11), 125.0 (=CH-4), 64.1 (CH2 -1), 32.6 (CH2 -2), 31.9 (CH2 -6), 29.7 (CH2 -8), 29.3 (CH2 -7), 29.1 (CH2 -9), 29.0 (CH2 -10), 27.1 (CH2 -5), 21.0 (COCH3), 20.5 (CH2 -13), 14.4 (CH3 -14). MS [EI, m/z(%)] 192 (M+ -60, 6), 163 (6), 149 (9), 135 (12), 121 (16), 107 (16), 96 (28), 95 (37), 93 (25), 82 (50), 81 (60), 80 (35), 79 (36), 69 (33) 68 (64), 67 (97), 55 (45), 43 (100), 41 (67). IR (CCl4, cm-1) 3006 (=CH cis str), 1743 (C=O), 1238, 1036 (C--O), 969 (=CH trans wag). IR (gas phase, cm-1) 3012 (cis =C--H str), 2934 (CH2), 1761 (C=O), 1231, 1038 (--O--), 968 (=CH trans wag).

Quellen und Nachweise

ORD-Eintrag
ord-2f15776952b34a539da4eb150087740b
Quelldatensatz
uspto-grants-1998_03
Patentnummer
US05728376

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