HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phenyl isocyanate → 4-Phenylcarbamoyl-2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phenyl isocyanate | HCID 7672 | — |
| Reactant | 2,2,7,7-Tetramethyl-1,4-diazepan-5-one | HCID 546910 | — |
| Product | 4-Phenylcarbamoyl-2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one | HCID 21530308 | — |
Reaction Steps
Using the same conditions as Example 1, 34 parts of 2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one and 26 parts of phenylisocyanate afforded 49 parts of 4-phenylcarbamoyl-2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one as an almost colourless solid. Crystallisation from petrol ether (40°-60°) yielded crystalline material of melting point 68.5° - 70°C which gave the following elemental analysis by weight:
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03962255 |
| Source dataset | uspto-grants-1976_06 |
| ORD ID | ord-c66e09618c494ccda3d92e197c357cc8 |
| Source note | uspto-grants-1976_06 |