Réaction #95999

ord-d7c416dde2864645a7a28174c6443301

Équation de réaction

[K]
Potassium
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
glucose
CC(=O)O
acetic acid
[Os]
osmium
[Os]
osmium
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
glucose
→
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
glucose
O=C([O-])[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
gluconate
[Os]
osmium
Rendement 10.0%

Réactifs

[K]
Potassium
—
dioxo osmate(VI)
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
glucose
CC(=O)O
acetic acid
—
carbohydrate
[Os]
osmium
[Os]
osmium
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
glucose

Réactifs

Aucun

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Autreto yield a brown or black product
  2. 2
    Autrethe reaction conditions

Mode opératoire

Potassium tricetato dioxo osmate(VI) reacts with glucose in glacial acetic acid to yield a brown or black product, depending upon the quantity of carbohydrate available for reaction and the reaction conditions employed. In situations in which there are two equivalents of glucose per equivalent of osmium, the product is black and contains 20 to 50% osmium. Larger quantities of glucose, or excess gluconate, results in a brown product with 10 to 20% osmium. Mild re-fluxing conditions (e.g. steam bath) favors the formation of the brown product.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US04346216uspto-grants-1982_08