Add time:09/05/2019         Source:sciencedirect.com

Treatment of D-Glucono-1,5-lactone (cas 1335-57-5) (3) with excess of acetic anhydride in anhydrous pyridine at room temperature afforded the tetra-acetate and 2,4,6-tri-O-acetyl-3-deoxy-d-erythro-hex-2-enono-1,5-lactone (1). On prolonged reaction or at 80°, 3-acetoxy-6-acetoxymethylpyran-2-one (5) was the unexpected main product. The mechanistic implications of the conversion of 1 → 5 are discussed.

We also recommend Trading Suppliers and Manufacturers of D-Glucono-1,5-lactone (cas 1335-57-5). Pls Click Website Link as below: cas 1335-57-5 suppliers