HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 131710035, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Phosphorus sulfide (P2S5) | HCID 14817 | — |
| Reactant | 1,4-Benzenedicarboxylic acid, 1-methyl ester, 4-[2-[4-(methoxycarbonyl)benzoyl]hydrazide] | HCID 90330 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 131710035 | HCID 131710035 | — |
Reaction Steps
1,2-di(4-Carbomethoxybenzoyl)hydrazine (A), prepared as in Example 1, in pyridine was refluxed with phosphorus pentasulfide for 15 hours. The mixture was cooled and poured into 20% ethanol. After the solution was neutralized with sodium bicarbonate, the product, dimethyl-4,4'-(1,3,4-thiadiazol-2,5-diyl)dibenzoate (D), was obtained by filtration (m.p. 268°-270°, yiled 60%). Then III was obtained by reacting D in a similar manner as in Example 1 (m.p. >300°, 60%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03939115 |
| Source dataset | uspto-grants-1976_02 |
| ORD ID | ord-4bdaf44736e14ef495015b220c66d934 |
| Source note | uspto-grants-1976_02 |