Ammonia → 7,11-Hexadecadiynol
Reaktionsgleichung
Br[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][OH:8].[CH:9]#[C:10][CH2:11][CH2:12][C:13]#[C:14][CH2:15][CH2:16][CH2:17][CH3:18].[Li].N>>[CH2:7]([OH:8])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][C:9]#[C:10][CH2:11][CH2:12][C:13]#[C:14][CH2:15][CH2:16][CH2:17][CH3:18]Komponenten
4
Versuchsvorschrift
The use of a protected derivative of 6-bromohexanol can be avoided thus an excess of lithium 1,5-decadiyne in liquid ammonia is used and allowed to react directly with 6-bromohexanol to give 7,11-hexadecadiynol (bp 136°-138°/1 torr, nD21 1.4818). Acetylation with acetic anhydride or acetic acid-acetyl chloride converts the alcohol to the acetate.
Quellen und Nachweise
- ORD-Eintrag
- ord-94aae238ea7b429088a03b46b1cf8840
- Quelldatensatz
- uspto-grants-1976_12
- Patentnummer
- US03996270
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