Process for producing phthalic acid esters
US4675434A · kind A · utility
16Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1984 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Nov 15, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing phthalic acid esters of formula (I) which comprises reacting the phthalic acids of formula (II) with an aliphatic alcohol in the presence of a catalyst consisting essentially of the dialkyltinoxides of formula (III): ##STR1## wherein R and R.sub.1 are the same or different and include both straight and branch chain aliphatic alkyl groups containing 4 to 13 carbon atoms and R.sub.2 and R.sub.3 are straight or branch chain aliphatic alkyl groups containing 1 to 8 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.