HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Sulfide → 4,6-Dimethylpyrimidin-2-ylthiourea
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Sulfide | HCID 402 | — |
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | (4,6-Dimethylpyrimidin-2-yl)cyanamide | HCID 521618 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | 4,6-Dimethylpyrimidin-2-ylthiourea | HCID 747500 | — |
Reaction Steps
A suspension of 10 g of 2-cyanoamino-4,6-dimethylpyrimidine in 50 ml of pyridine was saturated with hydrogen sulfide and stored for 1 hour at 25°. The H2S treatment was repeated twice more, and the mixture was allowed to stir at 25° for 16 hours. Methylene chloride was added, and the product was filtered and washed with methylene chloride to afford 8 g of 4,6-dimethylpyrimidin-2-yl thiourea, m.p. >260°. IR (Nujol) 3280, 3180, 3120, 1610 cm-1.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04689070 |
| Source dataset | uspto-grants-1987_08 |
| ORD ID | ord-678a5f2cc6bf4bd19684d016bda9dfe7 |
| Source note | uspto-grants-1987_08 |