1. Ph.D. Thesis;Dunn D. J.,1973
2. As with other ketene acetals3it is advisable to wash all glassware with aqueous alkali prior to rinsing with water and drying. This treatment prevents the oligomerization of the ketene acetal caused by the acidic surface of the glass
3. When this procedure was repeated on a larger scale (usingt-butoxide from 200 g of potassium and 940 g of the bromo-acetaldehyde acetal), the heat from the exothermic dehydrobromination reaction was not dissipated rapidly enough to avoid the loss of about one third of the contents of the flask during the subsequent violent boiling. When the boiling subsided, the distillation was continued normally to give 160 g of the ketene acetal