Hydrochloric Acid → 4H-1-Benzopyran-4-one, 3-hydroxy-2-phenyl-

HRID 397178

Reaktionsgleichung

Reaktionsgleichung von HRID 397178
[OH:1][C:2]1[CH:18]=[C:17](O)[CH:16]=[C:15](O)[C:3]=1[C:4](=[O:14])[CH:5]=[CH:6][C:7]1[CH:12]=[CH:11][C:10](O)=[CH:9][CH:8]=1.Cl.C[OH:23]>>[O:1]1[C:2]2[C:3](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:4](=[O:14])[C:5]([OH:23])=[C:6]1[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

Komponenten

4

Edukt 3

HCID 313Hydrochloric AcidHCID 887MethanolHCID 1558022-Propen-1-one, 3-(4-hydroxyphenyl)-1-(2,4,6-trihydroxyphenyl)-

Produkt 1

HCID 113494H-1-Benzopyran-4-one, 3-hydroxy-2-phenyl-

Versuchsvorschrift

Determination of flavonoid glycosides and narichalcone (2′,4′,6′,4-tetrahydroxychalcone) in tomato fruit is carried out using a non-hydrolysing method as follows: 40 mg of freeze-dried tomato tissue is weighed and transferred to a 10 ml Pyrex glass tube. To each tube 4 ml of 75% aqueous methanol acidified with HCl to pH 2 is added. The tubes are closed with screw tops containing a Teflon inlay and incubated at room temperature (20-25° C.) for 1 hr with continuous mixing on a roller band.

Aufarbeitung

  1. additionis added
  2. customThe tubes are closed with screw tops
  3. customincubated at room temperature
  4. custom(20-25° C.)
  5. customfor 1 hr
  6. additionwith continuous mixing on a roller band

Quellen und Nachweise

ORD-Eintrag
ord-004fdc3579024424af25c035527f13f1
Quelldatensatz
uspto-grants-2003_08
Patentnummer
US06608246B1

Verknüpfte Notizen

Wird geladen…