Process for heterogeneous nucleophilic substitution reactions
US4229366A · kind A · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Oct 20, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for nucleophilic substitution reactions. According to the invention the reaction is carried out in a heterogeneous system, consisting of a solid and a dissolved reactant, one or several organic solvents, one or several linear polyether derivatives, and/or amino compounds and water. The volume of the water is preferably at the most 100% of the volume of the organic solvent and more preferably 5%. According to the invention the anhydrous reaction medium which is difficult to ensure, is not necessary and the use of the expensive and in industrial scales unavailable crown ethers is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.