BORON TETRAACETATE Chemische Eigenschaften,Einsatz,Produktion Methoden
Verwenden
Tetraacetyl Diborate (TADB) is used as a selective acetylating agent for aromatic polyhydroxycarbonyl compounds; mild Lewis acid for Diels-Alder reactions of
hydroxyquinones.
synthetische
Preparative Methods of Tetraacetyl Diborate: a mixture of 31 g (0.50 mol) of Boric Acid and 165 mL (1.75 mol) of Acetic Anhydride is heated
slowly with an oil bath under N2 in a flask equipped with a reflux condenser and a magnetic stirrer. At about 70 °C a vigorous
exotherm (CAUTION) occurs and the reaction mixture becomes a clear solution which, upon cooling, deposits crystals of
TADB. The supernatant is drawn off and the crystals either washed with dry ether or recrystallized from 200 mL
CHCl3/benzene.
[1]
Einzelnachweise
1. Brown, H. C.; Stocky, T. P. JACS 1977, 99, 8218.
BORON TETRAACETATE Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
