HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 1-Ethoxycarbonyl-4-(3',5'-dichlorophenyl) urazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethyl chloroformate | HCID 10928 | — |
| Reactant | 4-(3,5-Dichlorophenyl)-1,2,4-triazolidine-3,5-dione | HCID 18755009 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1-Ethoxycarbonyl-4-(3',5'-dichlorophenyl) urazole | HCID 54411575 | 72% |
Reaction Steps
To a solution of 2.5 g of 4-(3',5'-dichlorophenyl) urazole and 1 g of triethylamine in 10 ml of N,N-dimethylformamide was added dropwise 1.1 g of ethylchloroformate with agitation. The reaction and agitation were continued at room temperature for one hour. The reaction mass was mixed with water to precipitate crystals which were filtered and recrystallized from acetone-ethanol to obtain 2.3 g of 1-ethoxycarbonyl-4-(3',5'-dichlorophenyl) urazole, which constituted a yield of 72%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04088767 |
| Source dataset | uspto-grants-1978_05 |
| ORD ID | ord-4ad44a5f61724d849663eb10b425cc2c |
| Source note | uspto-grants-1978_05 |