Process for preparing or purifying Group III-A organometallic compounds
US4847399A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1987 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Jan 23, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F5/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methods for forming or purifying organometallic compounds of elements of Group III-A of the Periodic Table. An intermediate compound is formed which is an adduct of the desired organometallic compound and a Group I-A or Group II-A compound. The adduct is nonvolatile, so volatile impurities are removed from the adduct by distillation. The adduct is decomposed to release the volatile organometallic compound, which is then distilled away from the nonvolatile remainder of the adduct. The method can be used to produce organometallic compounds which are substantially free of volatile metallic compounds and complexed solvents. A method of separating volatile Group II-B impurities from volatile Group III-A compounds is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.