86071-58-1Relevant articles and documents
Alternative Ligands, XV. - Novel Ligands of the Type (4-XC6H4)SiMe(EMe2)CH2CH2E'Me2 (E,E' = N, P, As; X = Cl, F; Me = CH3)
Aslanidis, Paraskevas,Grobe, Joseph
, p. 289 - 298 (2007/10/02)
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). - Key words: Ligands with CE'Me2 and SiEMe2 Donor Groups (E, E' = N, P, As), Synthesis, IR-Spectra, NMR Spectra, MS Spectra
