Borneol

Borneol
Generelt
Systematisk navn endo-1,7,7-trimethyl-
bicyclo[2.2.1]heptan-2-ol
Molekylformel C10H18O
Molmasse 154.25 g/mol
Fremtræden Hvidt, krystallinsk pulver
CAS nummer [[507-70-0] (+)
[464-45-9] (-)]
SMILES CC1(C2(C)C)C(O)CC2CC1
Egenskaber
Smeltepunkt 207 °C
Kogepunkt 210 °C
Specifik rotation [α]D 37.7 °
Sikkerhed
R-sætninger R36, R37, R38
Flammepunkt 65 °C
Hvis ikke andet er angivet, er data givet for
stoffer i standardtilstanden (ved 25 °C, 100 kPa)

Borneol er en bicyklisk organisk forbindelse og en terpen. Hydroxylgruppen i denne forbindelse sidder i endo-position. Isoborneol er dens exoisomer.

Kemi

Borneol oxideres nemt til den tilsvarende keton, kamfer. Borneol kan syntetiseres ved reduktion af kamfer i den såkaldte Meerwein-Ponndorf-Verley-reduktion. Den samme reaktion resulterer i isoborneol ved tilstedeværelse af natriumborohydrid.

Borneol findes som to enantiomerer. Den naturligt forkommende d-(+)-borneol er optisk aktiv. Den findes i mange arter af Artemisia og Dipterocarpaceae.

Brug

Borneol bruges i traditionel kinesisk medicin. Det sættes ofte til helsekost, da det menes at stimulere hjertet, åndedrættet, kredsløbet og det centrale nervesystem.

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