HuagongsheHuagongshe Chemistry Print Report · For research reference only
Calcium Carbonate → 5,6-O-benzylidene-L-ascorbic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Calcium Carbonate | HCID 10112 | — |
| Reactant | L-Ascorbic Acid | HCID 54670067 | — |
| Reactant | 5,6-O-benzylidene-L-ascorbic acid | HCID 54682464 | — |
| Solvent | Water | HCID 962 | — |
| Product | Calcium | HCID 5460341 | — |
| Product | 5,6-O-benzylidene-L-ascorbic acid | HCID 54682464 | 98.5% |
Reaction Steps
5,6-O-Benzylidene-L-ascorbic acid (13.2 g) was suspended in water (300 ml), to which was then added calcium carbonate (5 g), whereby the ascorbic acid was dissolved in water. The resulting aqueous solution was freeze-dried to give a calcium salt of 5,6-O-benzylidene-L-ascorbic acid (yield 13 g). This product was a white powdery substance which was readily soluble in water and decomposed near 200° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05036103 |
| Source dataset | uspto-grants-1991_07 |
| ORD ID | ord-78d241d3604c4f41835c6aec1ab02437 |
| Source note | uspto-grants-1991_07 |