Method of functionalizing polycyclic silicones and the compounds so formed
US5939576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1998 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Jan 5, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/21
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A synthetic process for the selective preparation of reactive polyhedral oligomeric silsesquioxanes (POSS) as well as polyhedral oligomeric silicate (POS) (spherosilicate) is provided. The inventive process employs the use of metal catalyzed hydrosilylation reactions for the selective reaction of silane containing polyhedral oligomeric silsesquioxanes or silicates with olefinic reagents bearing functionalities useful for grafting reactions, polymerization chemistry and sol-gel processes. The invention also discloses metal-catalyzed hydrosulfidation reactions and metal-catalyzed hydrophosphidation reacttions for functionalization of polycyclic silicones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.