HuagongsheHuagongshe Chemistry Print Report · For research reference only
3,4-dihydro-2H-pyran → 4-(4-Tetrahydropyranyloxybutoxy)-2-(6-tetrahydropyranylcarboxyhexyl)cyclopent-2-en-1-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3,4-dihydro-2H-pyran | HCID 8080 | — |
| Reactant | p-Toluenesulfonic acid monohydrate | HCID 521998 | — |
| Reactant | ACMC-20apjz | HCID 3690897 | — |
| Reactant | 7-[3-(4-Hydroxybutoxy)-5-oxocyclopent-1-EN-1-YL]heptanoic acid | HCID 23329999 | — |
| Reactant | 4-Tetrahydropyranyloxy-2-(6-tetrahydropyranylcarboxyhexyl)cyclopent-2-en-1-one | HCID 70420099 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 4-(4-Tetrahydropyranyloxybutoxy)-2-(6-tetrahydropyranylcarboxyhexyl)cyclopent-2-en-1-one | HCID 70636856 | — |
Reaction Steps
In the manner of Example 147 the mixture of 4-hydroxy-2-(6-carboxyhexyl)cyclopent-2-en-1-one and 4-(4-hydroxybutoxy)-2-(6-carboxyhexyl)cyclopent-2-en-1-one (Example 268) is converted to a mixture of the subject compound and 4-tetrahydropyranyloxy-2-(6-tetrahydropyranylcarboxyhexyl)cyclopent-2-en-1-one with dihydropyran and p-toluenesulfonic acid monohydrate in methylene chloride.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03950406 |
| Source dataset | uspto-grants-1976_04 |
| ORD ID | ord-561218c3a8844af291e3aada83f5fee7 |
| Source note | uspto-grants-1976_04 |