Solventless preparation of phthalimides
US6096900A · kind A · utility
6Cited by
5References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1999 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Oct 15, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the solventless synthesis of a phthalimide or phthalimide mixture is provided comprising contacting at least one amine reactant and at least one anhydride reactant in a solventless environment at a first temperature sufficient to allow the reactants to at least partially condense; and increasing the temperature to a second temperature sufficient to melt the reaction mixture, thereby allowing the reaction to go essentially to completion and form the reaction product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.