Preparation of esters of m-phenoxybenzyl alcohol and its .alpha.-cyano and .alpha.-ethinyl derivatives with 2,2-dimethylcyclopropanecarboxylic acids
US4116998A · kind A · utility
3Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Apr 4, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N53/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of esters of m-phenoxybenzyl alcohol and its .alpha.-cyano and .alpha.-ethinyl derivatives with carboxylic acids containing at least 6 carbon atoms by heating together a methyl or ethyl ester of the carboxylic acid, an ester of m-phenoxyphenyl alcohol or its .alpha.-cyano or .alpha.-ethinyl derivative with an acid of the formula R.CO.sub.2 H wherein R is an alkyl group containing not more than 3 carbon atoms, and tetramethyl or tetraethyl titanate at a temperature such that the methyl or ethyl ester of the acid of formula R.CO.sub.2 H is removed by distillation as it is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.