HuagongsheHuagongshe Chemistry Print Report · For research reference only
2,3-dihydro-7-hydroxy-8-propyl-4H-1-benzopyran-4-one → HCID 19922111, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2,3-dihydro-7-hydroxy-8-propyl-4H-1-benzopyran-4-one | HCID 15318299 | — |
| Reactant | HCID 54052169 | HCID 54052169 | — |
| Solvent | Ethyl acetate hexane | HCID 21226206 | — |
| Product | HCID 19922111 | HCID 19922111 | 76.3% |
Reaction Steps
Starting with 0.128 g (0.62 mmol) of 2,3-dihydro-7-hydroxy-8-propyl-4H-1-benzopyran-4-one, and 0.349 g (0.62 mmol) of 2-[(8-bromooctyl)oxy]-5-[[3-(ethoxycarbonyl)phenyl]carbonyl]benzenepropanoic acid ethyl ester, the title compound (0.232 g; 76.3% overall yield) was obtained as a white solid, mp 112°-117° C. (recrystallized from hexane-ethyl acetate), using the procedure of example 22.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05273999 |
| Source dataset | uspto-grants-1993_12 |
| ORD ID | ord-bc01242d208642b0a415b7c2cf3771f3 |
| Source note | uspto-grants-1993_12 |