HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dichloromethane → 3,4-dihydro-4-oxo-7-(phenylmethoxy)-8-propyl-2H-1-benzopyran-2,2-dipropanoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | dimethyl 3,4-dihydro-4-oxo-7-(phenylmethoxy)-8-propyl-2H-1-benzopyran-2,2-dipropanoate | HCID 15157435 | — |
| Reactant | diethyl 3,4-dihydro-7-[3-(4-chlorophenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate | HCID 15157438 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 3,4-dihydro-4-oxo-7-(phenylmethoxy)-8-propyl-2H-1-benzopyran-2,2-dipropanoic acid | HCID 15157442 | — |
Reaction Steps
The title compound, 102 mg, m.p. 202°-205° C., was prepared by the method of Example 22 substituting the title product of Example 18 (455 mg) for the title product of Example 21, and utilizing methylene chloride as the extraction solvent instead of ethyl acetate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05093353 |
| Source dataset | uspto-grants-1992_03 |
| ORD ID | ord-4f685af29dc2443e9909d0609a66881c |
| Source note | uspto-grants-1992_03 |