Alternativ-Liganden, XV [1]. Neue Liganden des Typs (4-XC6H4)SiMe(EMe2)CH2CH2E′Me2 (E, E′ = N, P, As; X = Cl, F; Me = CH3) / Alternative Ligands, XV [1]. Novel Ligands of the Type (4-XC6H4)SiMe(EMe2)CH2CH2E′Me2 (E, E′ = N, P, As; X = Cl, F; Me = CH3)
Open Access
- 1 March 1983
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 38 (3) , 289-298
- https://doi.org/10.1515/znb-1983-0303
Abstract
Starting from Cl2Si(Me)CH = CH2 (1) the title compounds are obtained by two different routes: a) Ligands with E = N and E' = N, P, As are prepared by aminolysis of 1 yielding Cl(Me2N)Si(Me)CH = CH2 (2) followed by SiCl-substitution with (4-ClC6H4)MgCl (3). Photochemical or base catalyzed addition of HE'Me2 (E' = N, P, As) to the vinyl group of (4-ClC6H4)SiMe(NMe2)CH = CH2 (4) produces the corresponding ligands 5 to 7 (Abb. 2). Cleavage of the SiN bond in 7 leads to (4-ClC6H4)SiMe(Cl)CH2CH2NMe2 (8) which on substitution with LiEMe2 (E = P, As) gives the ligands 9 and 10. b) Ligands with E, E' = P, As are obtained by first introducing the aryl substituent to yield (4-ClC6H4)SiMe(Cl)CH = CH2 (11) which by photochemical addition of HE'Me2 (E' = P, As) gives the semi-ligands 12 and 13. Replacement of SiCl by SiEMe2 (E = P, As) with LiEMe2 affords compounds 14 to 17 (Abb. 3). - Some representative ligands with p-fluorophenyl groups (19, 20, 24, 25) are prepared by similar procedures (Abb. 4). New compounds are characterized by spectroscopic methods (IR, NMR, MS).Keywords
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