Tetraacetyl diborate is an organoboron compound with the molecular formula (CH3COO)2BOB(CH3COO)2.
Preparation It is not well known and was discovered accidentally by an attempt trying to make boron triacetate in the 1950s. It was made by reacting boric acid and acetic anhydride around under nitrogen which created tetraacetyl diborate and acetic acid. It crystallized as a colorless solid.
2H3BO3 + 5(CH3CO)2O → (CH3COO)2BOB(CH3COO)2 + 6CH3COOH
Reactions Tetraacetyl diborate reacts with methanol to form water and diacetyl methoxyboron.
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