HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diethyl (ethoxymethylene)malonate → HCID 12736916, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diethyl (ethoxymethylene)malonate | HCID 6871 | — |
| Reactant | 3-Amino-6-chloro-4H-1-benzopyran-4-one | HCID 12343080 | — |
| Product | HCID 12736916 | HCID 12736916 | 68.6% |
Reaction Steps
A mixture of 3-amino-6-chlorochromone (1.95 g, 0.01 mole) and diethyl ethoxymethylenemalonate (3.5 g, 0.016 mole) was heated under nitrogen at 120° for 4 hrs. The reaction mixture was cooled. The product, which precipitated, was filtered off and washed with ethyl acetate. Recrystallization from ethyl acetate gave white crystals (2.51 g, 68%), m.p. 143°-145°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04066655 |
| Source dataset | uspto-grants-1978_01 |
| ORD ID | ord-5e6009f11c544e6896d9fa20994f52d8 |
| Source note | uspto-grants-1978_01 |