HuagongsheHuagongshe Chemistry Print Report · For research reference only
O-Cresol → 1,3-Dimethyl-5-(phenylaminocarbonyl methylene)-hydantoin
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | O-Cresol | HCID 335 | — |
| Reactant | N,N'-Dimethylurea | HCID 7293 | — |
| Reactant | N-Phenylmaleimide | HCID 13662 | — |
| Product | 1,3-Dimethyl-5-(phenylaminocarbonyl methylene)-hydantoin | HCID 54089272 | — |
Reaction Steps
A solution of 17.3 parts of N-phenyl maleic imide and 8.8 parts of N,N'-dimethyl urea in 100 parts of cresol is stirred for three hours at 190° C. The solvent is distilled off in vacuo and the residue fractionated. The oily liquid which distills at a boiling point of 220° C./0.1 Torr solidifies after a while and may be recrystallised from n-propanol (Mp. 114°-115° C.). IR and NMR-spectra confirm the assumed compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04156074 |
| Source dataset | uspto-grants-1979_05 |
| ORD ID | ord-8b024fb737aa439eb142cfe6c438d4a7 |
| Source note | uspto-grants-1979_05 |