Reaktion #514152

ord-a57f12c0dd8146639e6a128631e27211

Reaktionsgleichung

O=C[C@H](O)[C@@H](O)[C@H](O)CO
D-xylose
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
D-glucose
→
O=C[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
D-mannose

Edukte

O=C[C@H](O)[C@@H](O)[C@H](O)CO
D-xylose
O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
D-glucose
—
yellowish residue

Reagenzien

Keine

Reaktionsbedingungen

Temperatur
80°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe readily volatile constituents are then removed in vacuo (10-3Torr)
  2. 2
    workup.DISTILLATIONSubsequent distillation
  3. 3
    Sonstigegives 7.3 g of bp. 78° C./10-3Torr

Vorschrift

A mixture of 5.7 g (38.4 mmole) of D-xylose of mp. 153° C. and 6.9 g (38.4 mmole) of D-glucose of mp. 143° C. is heated to approximately 80° C. with 52.7 g (176.8 mmole) of BEPDIB. The readily volatile constituents are then removed in vacuo (10-3Torr). Subsequent distillation gives 7.3 g of bp. 78° C./10-3Torr in addition to 11 g of yellowish residue.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US04172195uspto-grants-1979_10