University of Pardubice Faculty of Chemical Technology

University

Employees
|
Students
Česky

Publication detail

Synthesis of Stannylenes chelated by bulky bis-amides

Authors: Leinweber Petr | Růžička Aleš

Year: 2024

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Synthesis of Stannylenes chelated by bulky bis-amides	The use of bis(amido)silanes as ligands was investigated already in 1970s, especially by Veith, but only few bis(amido)silyl stannylenes have been prepared to date, even though their use, for example in catalysis, is still subject to research. In last few years a series of new bis(amido)silyls bearing superbulky substituents (derived from 2,6-diphenylmethyl-4-methylaniline) have been prepared by our group. These silanes were afterwards used for synthesis of stannylenes by their deprotonation with n-BuLi a subsequent reaction with SnCl2. These stannylenes have been characterized via multinuclear NMR and SC-XRD. Very low yields of these reactions (≈ 10 %) forced us to investigate the course of reactions in more detail. Unusual reaction pattern and products have been observed in case of deprotonation of bis(amido)ligand by organolithium reagents. Reaction with other deprotonation reagents have been carried out along with modification of ligands. Products of all reactions have been characterized by multinuclear NMR and SC-XRD techniques.