Preparation of p-p-disubstituted diaryl trichloroethanes
US3932527A · kind A · utility
2Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1973 |
| Grant date | Jan 13, 1976 |
| Priority date | — |
| Expiry date | Nov 19, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C323/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of insecticidal, biodegradable compositions comprising mixtures of p-p'disubstituted diaryl trichloroethanes. Chloral, and appropriate substitutal benzenes are condensed, in a single step, at low temperature, e.g., -30.degree.C., using a condensing agent preferably consisting of a mixture of sulfuric acid and acetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.