Method of generating lower alkyl and cycloalkyl isocyanates
US4141913A · kind A · utility
1Cited by
2References
7Claims
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Assignee
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Key dates
| Filing date | Jan 23, 1978 |
| Grant date | Feb 27, 1979 |
| Priority date | — |
| Expiry date | Jan 23, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C263/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of generating lower alkyl and cycloalkyl isocyanates in situ by pyrolysis of an appropriately selected alkyl aryl urea of the formula ##STR1## where R.sub.1 aryl, R.sub.2 may be either alkyl, cycloalkyl or aryl, and in which R.sub.3 is the specific lower (C.sub.1 through C.sub.6) alkyl or cycloalkyl radical of the isocyanate selected to be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.