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-7-[3-(1-naphthalenyloxy)propoxy]-4-oxo-8-propyl-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-7-[3-(1-naphthalenyloxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate | HCID 15157445 | — |
| Product | 3,4-dihydro-7-[3-(1-naphthalenyloxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoic acid | HCID 15157446 | — |
Reaction Steps
The title compound was prepared by the method of Example 22 substituting the title product of Example 28 (549 mg) for the title product of Example 21 to give, after crystallization from ethyl acetate, 141 mg, m.p. 164°-167° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05093353 |
| Source dataset | uspto-grants-1992_03 |
| ORD ID | ord-de0a6ef3ec794bab90e036b852f25384 |
| Source note | uspto-grants-1992_03 |