Intermediate compounds usable for the preparation of herbicides
US5041626A · kind A · utility
0Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Jun 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/3808
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to compounds of formula: ##STR1## in which R.sup.4 is a group which can be hydrogenolyzed, R and R.sup.1 are alkyl groups, X.sup.- is an HSO.sub.4.sup.-, Cl.sup.- or R.sup.7 SO.sub.3.sup.- anion and to a process for the preparation of the compounds of formula (I) by the hydrolysis of the compounds of formula (II): ##STR2## in which R.sup.2 and R.sup.3 are alkyl groups linked to the oxygen via a secondary carbon, using sulphuric or hydrochloric acid. The invention also relates to the use of compounds of formula (I) for the preparation of herbicide by the hydrogenolysis of the compounds of formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.