Reaktion #63456

Reaktionsgleichung

3,4-Dihydro-3-oxo-1,4(2H)-benzoxazine

diborane

sodium hydroxide

→

title compound

3,4-Dihydro-1,4(2H)-benzoxazine

Lösungsmittel

tetrahydrofuran

Reaktionsbedingungen

Aufarbeitung

1. 1
   Extraktionthe product was extracted with ether
2. 2
   Sonstigethe solvent was evaporated

Vorschrift

3,4-Dihydro-3-oxo-1,4(2H)-benzoxazine was refluxed for several hours in one equivalent of diborane in tetrahydrofuran. Excess sodium hydroxide solution was added, the product was extracted with ether and the solvent was evaporated to give the title compound as an oil.

Quelle