(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal → Levoglucosan

HRID 516272

Reaktionsgleichung

Reaktionsgleichung von HRID 516272
O=[CH:2][C@@H:3]([C@H:5]([C@@H:7]([C@@H:9]([CH2:11][OH:12])[OH:10])[OH:8])[OH:6])[OH:4]>OS(O)(=O)=O>[CH2:11]1[O:12][C@@H:2]2[O:10][C@H:9]1[C@@H:7]([OH:8])[C@H:5]([OH:6])[C@H:3]2[OH:4]

Komponenten

3

Edukt 1

HCID 107526(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal

Produkt 1

HCID 2724705Levoglucosan

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1118Sulfuric AcidLösungsmittel2×

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

Prior to the glucose determination, the maltodextrins and the various copolymers were hydrolysed following the following sulfuric acid procedure. About 500 mg sample was weighed in an acid digestion bomb equipped with 30 ml teflon insert (Parr Instruments) and diluted with 1 ml 70% H2SO4 followed by addition of approximately 3 ml of distilled (milliQ) water. The mixture was heated to 90° C. for about 5 hours. This hydrolysis was carried out in duplicate for all samples.

Aufarbeitung

  1. additionfollowed by addition of approximately 3 ml
  2. distillationof distilled (milliQ) water

Quellen und Nachweise

ORD-Eintrag
ord-bc9d456af2124ba1b3af295ed003b110
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09109068B2

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