HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → HCID 3950390, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | 1H-Indene-1,3(2H)-dione, 2-nitro- | HCID 77242 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 3950390 | HCID 3950390 | — |
Reaction Steps
A mixture of 2-nitroindane-1,3-dione (22.3g., 0.117 moles) and methanol (100 ml) was heated under reflux for 4 hours, cooled, poured into water (1 liter), allowed to stand overnight then filtered. The solid was extracted with 5% sodium bicarbonate solution (200 ml). The insoluble material was filtered off, dried, and recrystallised from ethanol to give the ψ-ester, 3-methoxy-3-nitromethylphthalide, m.p. 113°-114°. Acidification of the sodium bicarbonate filtrate, filtration and recrystallisation from ethanol gave the α-methyl ester, 2-methoxycarbonyl-ω-nitroacetophenone, m.p. 108°-9°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03983156 |
| Source dataset | uspto-grants-1976_09 |
| ORD ID | ord-657f8aaf125744bea67d82c1fd38e695 |
| Source note | uspto-grants-1976_09 |