Lithium dialkylamide and lithium alkylenecycloimide formulations and methods of preparation
US5923044A · kind A · utility
2Cited by
10References
21Claims
0Family size
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Key dates
| Filing date | May 15, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F1/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing nornally liquid hydrocarbon solutions of lithium dialkylamides and lithium alkylenecycloimides, essentially free of ethers and by-product gaseous alkanes derived from C1-C4 alkyllithium compounds, comprising reacting lithium metal with a C.sub.5 to C.sub.12 secondary amine and an electron carrier compound containing at least five carbon atoms in a normally liquid hydrocarbon solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.