Silane compound for use in the synthesis of semiconducting polymers with perpendicular arranged cores
US5059695A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0816
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The stereochemical structure necessary for preparation of perpendicularly arranged cores is provided by a compound of the formula ##STR1## wherein X is a reactive group through which polymeric subunits can be bonded to the compound. In particular, X is advantageously Br. This compound can be synthesized by the reaction of tetrakis(3'-trimethylsilyl-2'-propynyl)silane with zirconocene dichloride and n-butyllithium and adding sulfur monochloride to the reaction product. This produces an adduct in which X is SiMe.sub.3. This adduct may be converted to the bromo compound by reaction with bromine. The tetrakis(3'-trimethylsilyl-2-propynyl)silane may be prepared by forming a magnesium Grignard reagent from 3-bromo-1-trimethylsilylpropyne and reacting the Grignard reagent with silicon tetrachloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.