Process for preparing organotin compounds
US4092340A · kind A · utility
3Cited by
8References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Jan 14, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/2208
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Tetraalkyltin compounds substantially free from tin, tin alkyl and di alkyl contaminants are prepared by reacting an alkyl halide of 1 - 4 carbon atoms with tin in the presence of an 'onium salt e.g. a quaternary ammonium halide and at least 0.5 g atom of zinc per g atom of tin, and collecting a vapor phase effluent comprising the tetraalkyltin. The tetraalkyltin can be disproportionated with stannic chloride to give alkyltin chlorides, intermediates for making stabilizers for polymers and biocides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.