HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → 1,1-Dimethyl-3-(4-carbamoyl-3-ethoxy-5-isothiazolyl)urea
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 1,1-Dimethyl-3-(4-cyano-3-ethoxy-5-isothiazolyl)urea | HCID 21396818 | — |
| Product | 1,1-Dimethyl-3-(4-carbamoyl-3-ethoxy-5-isothiazolyl)urea | HCID 18550205 | — |
Reaction Steps
A mixture of 3.8 g of 1,1-dimethyl-3-(4-cyano-3-ethoxy-5-isothiazolyl)urea in 7 ml of concentrated sulfuric acid was treated as described in Example II to give 3.5 g of 1,1-dimethyl-3-(4-carbamoyl-3-ethoxy-5-isothiazolyl)urea, m.p. 172°-172°. The nmr spectrum was consistent with the assigned structure.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04059433 |
| Source dataset | uspto-grants-1977_11 |
| ORD ID | ord-db5a4e94f48441a69890c107d1b816d1 |
| Source note | uspto-grants-1977_11 |