HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isocyanate → 1,4,4a,9,10,10a-Hexahydro-4a-isocyanato-9-methylphenanthrene
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isocyanate | HCID 105034 | — |
| Reactant | P,P-Diphenylphosphinic azide | HCID 199401 | — |
| Reactant | HCID 19107114 | HCID 19107114 | — |
| Product | 1,4,4a,9,10,10a-Hexahydro-4a-isocyanato-9-methylphenanthrene | HCID 19106969 | 74% |
Reaction Steps
The unsaturated carboxylic acid (1.5 g, 6.2 mmol) derived from hydrolysis of the product from Example 29 was converted to the isocyanate with diphenylphosphorylazide (1.87 g, 6.8 mmol) according to the method used in Example 31. Purification by silica gel chromatography gave the title compound as a clear oil (1.1 g, 74%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05276053 |
| Source dataset | uspto-grants-1994_01 |
| ORD ID | ord-9b243f0238114578b182c13436a8bd81 |
| Source note | uspto-grants-1994_01 |