Dendrimers with 1, 3, 5‐Trisilacyclohexane as Core Unit

Abstract

Abstract.1,1,3,3,5,5-Hexavinyl-1,3,5-trisilacylohexane [Si(CH=CH 2 ) 2 CH 2 ] 3 was synthesized and hydrosilylated with trichlorosilane to afford the first generation of a dendrimer. Conversion of this molecule with 18 Si-Cl functions on its surface with an excess of vinylmagnesium bromide yielded the 18-fold vinylated dendrimer.

Hexadentate Poly‐Lewis Acids Based on 1,3,5‐Trisilacyclohexane

“…The use of methoxy protecting groups leads to a preferential formation of the cyclic trimer, [19a] instead of disilacyclobutanes or larger partially branched ring systems and oligomers. Deprotection with boron trichloride [20] afforded the hexa‐chlorinated trisilacyclohexane 1 . This provides the basis for a hexadentate backbone for PLA synthesis.…”

“…Under analogous conditions, hydrosilylation was carried out with chlorodimethylsilane on 1,1,3,3,5,5‐hexavinyl‐1,3,5‐trisilacyclohexane ( 9 ), which was prepared according to a synthetic route (Scheme 4) earlier established in our group [20] …”

Tricky but repeatable synthetic approach to branched, multifunctional silsesquioxane dendrimer derivatives

“…[18][19][20][21][22] The cores of such systems can be constructed of silanes, cyclosiloxanes, 1,3,5-trisilacyclohexane, as well as more extensive structures, such as silsesquioxanes. 3,23,24 The latter, i.e. silsesquioxanes (SQs), are hybrid compounds characterized by the presence of a rigid, inorganic Si-O-Si core and organic substituents attached to silicon atoms of this core.…”

“…18–22 The cores of such systems can be constructed of silanes, cyclosiloxanes, 1,3,5-trisilacyclohexane, as well as more extensive structures, such as silsesquioxanes. 3,23,24…”

Metallodendrimers Unveiled: Investigating the Formation and Features of Double-Decker Silsesquioxane-Based Silylferrocene Dendrimers

“…Organosilicon compounds are often used in dendritic systems, e.g., silanes, cyclosiloxanes, 1,3,5-trisilacyclohexane, or more complex structures such as silsesquioxanes. ,,− They are known as polyhedral oligomeric silsesquioxanes (SQs, POSS) and represent a class of hybrid organic–inorganic compounds that have garnered significant attention in the field of materials chemistry. These unique structures consist of Si atoms at the vertices of a three-dimensional cage, with O atoms bridging the silicon units. − Their molecular formula can be described as [RSiO 1.5 ] n , where R represents the organic substituents attached to the silicon atoms.…”