HuagongsheHuagongshe Chemistry Print Report · For research reference only
3,4-dihydro-2H-pyran → 2-(3-Butynyloxy)tetrahydro-2H-pyran
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3,4-dihydro-2H-pyran | HCID 8080 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 3-Butyn-2-ol | HCID 16239 | — |
| Catalyst | Hydrochloric Acid | HCID 313 | — |
| Product | 2-(3-Butynyloxy)tetrahydro-2H-pyran | HCID 142440 | — |
Reaction Steps
3-Butyn-2-ol (1 mol) and dihydropyran (1.1 mol) are mixed and 2 drops of concentrated hydrochloric acid are added. The reaction mixture is allowed to stand 2 to 3 hours at room temperature and a few pellets of sodium hydroxide are added. After filtration, the product is distilled.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05436273 |
| Source dataset | uspto-grants-1995_07 |
| ORD ID | ord-201a851f752244b1af09ff9689fe6d6b |
| Source note | uspto-grants-1995_07 |