Kann bei Einatmen Allergie, asthmaartige Symptome oder Atembeschwerden verursachen.
Sensibilisierung der Atemwege
Kategorie 1
Achtung
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P261, P285, P304+P341, P342+P311,P501
H400
Sehr giftig für Wasserorganismen.
Kurzfristig (akut) gew?ssergef?hrdend
Kategorie 1
Warnung
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P273, P391, P501
Sicherheit
P273
Freisetzung in die Umwelt vermeiden.
P302+P352
BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Beschreibung
(8E,10E)-Dodecadien-1-ol is a sex pheromone of Laspeyresia pomonella.
Verwenden
8,10-DODECADIEN-1-OL is used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and chemical production processes.
Synthese
To a mixed so
lution of Methyl5-oxo-(E,E)-8,10-dodecadienoate (15.7g, 0.07 mol) and p-toluene
sulfonylhydrazine (16.3g, 0.0875 mol) in DMF
- sulfolane (350ml, 1 : 1) was added p-toluenesulfonic acid
(1.75g) and sodium cyanoborohydride (17.6g, 0.28mol) at
room temperature, and the solution was heated at 100 ℃ for 4 hr. After cooling to room temperature, the reaction
mixture was diluted with water (1000ml) and extracted
with cyclohexane. The cyclohexane solution was washed
with water, dried over Na2SO4 and concentrated in vacuo.
Column chromatography of the oily residue over silica gel
(Merck Kieselgel 60) with petroleum ether-ether (10:1)
gave 4 (5.6g, 38%) as a pale yellow liquid.A solution of Methyl (E,E)-8,10-dodecadienoate (4.2g,
0.02mol) in absolute ether (40ml) was added dropwise to a
slurry of lithium aluminum hydride (0.38g, 0.01mol) in
absolute ether (60 ml) with stirring at room temperature.
Stirring was continued for 1 hr at room temperature. After
the mixture was refluxed for I hr, the reaction was quen
ched with 2NH2SO4 (30ml) and the mixture was worked
up by the usual procedure to give the alcohol 5, with a
nearly quantitative yield, which solidified during storage in
a refrigerator, (recrystallized from pe
troleum ether). The purity was 97% on GLC analysis.
(8E,10E)-Dodeca-8,10-dienol Upstream-Materialien And Downstream Produkte