| Content Provider |
World Health Organization (WHO)-Global Index Medicus |
| Author |
Dostál, Libor Ruzickova, Zdenka Glowacki, Britta Jurkschat, Klaus Novák, Miroslav Jambor, Roman Lycka, Antonín Hosnová, Hana |
| Description |
Author Affiliation: Novák M ( Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic.); Hosnová H ( Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic.); Dostál L ( Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic.); Glowacki B ( Fakultät für Chemie und Chemische Biologie, Technische Universität, 44227, Dortmund, Germany.); Jurkschat K ( Fakultät für Chemie und Chemische Biologie, Technische Universität, 44227, Dortmund, Germany.); Lycka A ( Centre of Organic Chemistry, Rybitví 296, 53354, Rybitví, Czech Republic.); Ruzickova Z ( Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic.); Jambor R ( Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic.) |
| Abstract |
Treatment of the neutral pyridine-based ligands $L^{1}–L^{3},$ bearing either one or two RN=CH imine moieties {where $L^{1}$ and $L^{2}$ are N,N-chelating ligands $2-(RN=CH)C_{5}H_{4}N$ (R=Ph $(L^{1})$ or $R=2,4,6-Ph_{3}C_{6}H_{2}$ $(L^{2}))$ and $L^{3}$ is the N,N,N-chelating ligand $2,6-(RN=CH)_{2}C_{5}H_{3}N$ $(R=2,6-iPr_{2}C_{6}H_{3})\},$ with $HSiCl_{3}$ yielded N→Si-coordinated silicon(IV) amides $2-\{Cl_{3}SiN(R)CH_{2}\}C_{5}H_{4}N$ (1, R=Ph; 2, $R=2,4,6-Ph_{3}C_{6}H_{2})$ and $2-\{Cl_{3}SiN(R)CH_{2}\}-6-(RN=CH)C_{5}H_{4}N$ (3, $R=2,6-iPr_{2}C_{6}H_{3}).$ The organosilicon amides 1–3 are the products of spontaneous hydrosilylation of the RN=CH imine moiety induced by N→Si coordination of the proposed N,N-chelated chlorosilanes $L^{1}→SiHCl_{3}$ (1 a), $L^{2}→SiHCl_{3}$ (2 a), and $L^{3}→SiHCl_{3}$ (3 a). Furthermore, the reaction of $L^{3}$ with an excess of $HSiCl_{3}$ provided the intramolecularly coordinated chlorosilicon diamide $cyclo-\{(C_{5}H_{3}N)-1,3-(CH_{2}NR)_{2}\}SiCl_{2}$ (4) $(R=2,6-iPr_{2}C_{6}H_{3})$ as the product of spontaneous reduction of both RN=CH imine moieties. The compounds have been characterized by NMR spectroscopy (1–4) and single-crystal X-ray diffraction analysis (1, 3, and 4). The mechanism of the hydrosilylation of the second RN=CH imine moiety in 3 by an excess of $SiHCl_{3}$ has also been studied. The experimental work is supplemented by DFT calculations. |
| ISSN |
09476539 |
| e-ISSN |
15213765 |
| Journal |
Chemistry - A European Journal |
| Issue Number |
13 |
| Volume Number |
23 |
| Language |
English |
| Publisher |
Wiley-VCH;ChemPubSoc Europe |
| Publisher Date |
2017-03-02 |
| Publisher Place |
Germany |
| Access Restriction |
Open |
| Subject Keyword |
Chemistry |
| Content Type |
Text |
| Resource Type |
Article |
| Subject |
Organic Chemistry Catalysis |
