Process for the production of macrocyclic esters
US4218379A · kind A · utility
18Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1978 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Dec 18, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D323/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is provided for the continuous or semi-continuous production of hetero-macrocyclic compounds including lactones and cyclic esters. The process involves the catalyzed depolymerization of linear polyesters at elevated temperature and under reduced pressure in the presence of a specified amount of monocarboxylate moieties while providing top-to-bottom mixing throughout essentially the total volume of the reaction mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.