HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethylene Glycol → 2-Indanyl-4-methyl-1,3-dioxolane
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethylene Glycol | HCID 174 | — |
| Reactant | 2,3-dihydro-1H-indene-1-carbaldehyde | HCID 11116198 | — |
| Reactant | 2,3-Dihydro-1H-indene-2-carbaldehyde | HCID 11744771 | — |
| Catalyst | p-Toluenesulfonic acid | HCID 6101 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | 2-Indanyl-4-methyl-1,3-dioxolane | HCID 11321664 | — |
Reaction Steps
A solution of 297 grams of a mixture of 70% Indancarbaldehyde and 30% indan-2-carbaldehyde, 300 grams of ethylene glycol, 6 grams of p-toluenesulfonic acid and 300 grams of toluene are heated 2 hours at reflux using a Dean-Stark trap to separate water. The mixture is cooled and washed with 200 milliliters of a 5 weight % sodium carbonate solution. The organic layer is distilled to provide 321 grams of 2-indanyl-4-methyl-1,3-dioxolane (b.p.121° C. at 3 mm).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06362141B1 |
| Source dataset | uspto-grants-2002_03 |
| ORD ID | ord-0e698486875c4deca9c33f8d8703e1f3 |
| Source note | uspto-grants-2002_03 |