HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium hydrosulfide → HCID 178469947, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium hydrosulfide | HCID 28015 | — |
| Reactant | 5-Chloro-1,3-dimethyl-1H-dipyrazolo[1,5-a:4',3'-e]pyrazine-6-carboxylic acid, ethyl ester | HCID 53966407 | — |
| Solvent | 1-Propanol | HCID 1031 | — |
| Product | HCID 178469947 | HCID 178469947 | — |
Reaction Steps
5.86 gms. of 5-chloro-1,3-dimethyl-1H-dipyrazolo[1,5-a:4',3'-e]pyrazine-6-carboxylic acid, ethyl ester, are refluxed with 2 gms. of sodium bisulfide and 50 ml. of n-propanol for 3 hours. On cooling, the product, 1,3-dimethyl-5-mercapto-1H-dipyrazolo[1,5-a:4',3'-e]pyrazine-6-carboxylic acid, ethyl ester, crystallizes in the form of yellow filamentous needles which are recrystallized from n-propanol, yield 4.76 gms., m.p. 189°-191°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04077956 |
| Source dataset | uspto-grants-1978_03 |
| ORD ID | ord-8c218b7a302e497e9b86ae99aa9b64fb |
| Source note | uspto-grants-1978_03 |