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Tridentate Lewis Acids: Silicon-Functionalised 1,3,5-Triethynylbenzene and 1,3,5-Trivinylbenzene.
Tridentate Lewis Acids: Silicon-Functionalised 1,3,5-Triethynylbenzene and 1,3,5-Trivinylbenzene.
- Source :
- European Journal of Inorganic Chemistry; 6/15/2018, Vol. 2018 Issue 22, p2533-2540, 8p, 2 Color Photographs, 5 Diagrams, 6 Charts
- Publication Year :
- 2018
-
Abstract
- Planar tridentate Lewis acids were synthesised by hydrosilylation reactions of triethynylbenzene with chlorosilanes. Hydrogenation of the rigid triethynylbenzene using hydrogen in the presence of Lindlar's catalyst resulted in the formation of trivinylbenzene. The hydrosilylation of this compound enabled the synthesis of flexible tridentate Lewis acids with SiClMe<subscript>2</subscript> and SiCl<subscript>2</subscript>Me, SiCl<subscript>3</subscript> groups. In order to increase the acidity, the chlorine substituents of the tridentate Lewis acids were substituted by fluorine and compounds with SiF<subscript>2</subscript>Me and SiF<subscript>3</subscript> groups were obtained. The Lewis acidity of the isolated compounds was determined with the Gutmann–Beckett method. The results show the presence of cooperative effects of the silyl groups. [ABSTRACT FROM AUTHOR]
- Subjects :
- LEWIS acids
HYDROSILYLATION
CHLOROSILANES
FLUORINE compounds
SILYL group
Subjects
Details
- Language :
- English
- ISSN :
- 14341948
- Volume :
- 2018
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- European Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 130199829
- Full Text :
- https://doi.org/10.1002/ejic.201800279