HuagongsheHuagongshe Chemistry Print Report · For research reference only
diethyl 3,4-dihydro-7-[3-(4-chlorophenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate → 3,4-dihydro-4-oxo-7-(3-phenoxypropoxy)-2H-1-benzopyran-2,2-dipropanoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | diethyl 3,4-dihydro-7-[3-(4-chlorophenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate | HCID 15157438 | — |
| Reactant | diethyl 3,4-dihydro-4-oxo-7-(3-phenoxypropoxyl)-2H-1-benzopyran-2,2-dipropanoate | HCID 15157443 | — |
| Product | 3,4-dihydro-4-oxo-7-(3-phenoxypropoxy)-2H-1-benzopyran-2,2-dipropanoic acid | HCID 15157444 | — |
Reaction Steps
The title compound was prepared by the method of Example 22 substituting the title product of Example 26 for the title product of Example 21. Crystallization from 60% by volume ethyl acetate/hexane yielded 219 mg, m.p. 132°-133° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05093353 |
| Source dataset | uspto-grants-1992_03 |
| ORD ID | ord-78de87d996f14ec4913e4a4f61a44440 |
| Source note | uspto-grants-1992_03 |