RT info:eu-repo/semantics/article
T1 Reactivity of chlorodimethylsilyl-η5-cyclopentadienyltrichlorotitanium
with nitrogen based donors. X-ray molecular structure of
[Ti{η5-C5H4SiMe2[η1-N(2,6-Me2C6H3)]}Cl2]
A1 Gómez Ramírez, Rafael
A1 Gómez Sal, Pilar
A1 Martín Alonso, Avelino
A1 Núñez Sánchez, Aurora
A1 Real Manzano, Pedro Ángel del
A1 Royo Gracia, Pascual
K1 Titanium
K1 Amido-silylcyclopentadienyl
K1 Amidotitanium
K1 Alkyltitanium
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB This paper reports the reactivity of [Ti(η5-C5H4SiMe2Cl)Cl3], 1 towards nitrogen based donor reagents. Complex 1 reacts with lithium benzamidinato Li[PhC(NSiMe3)2] to afford [Ti(η5-C5H4SiMe2Cl){PhC(NSiMe3)2}Cl2] 2 and with lithium amide LiNMe2 to produce [Ti(η5-C5H4SiMe2NMe2)(NMe2)3] 3. The latter compound was converted into the dihalide derivatives [Ti(η5-C5H4SiMe2NMe2)(NMe2)X2] [X=Cl (4) and Br (5)] by reaction with SiMe3X (X=Cl or Br, respectively). The constrained geometry derivatives [Ti{η5-C5H4SiMe2(η1-NR)}Cl2] (R=C6H56, 2,6-Me2C6H37 and 2-Me-6-iPr-C6H38) have been synthesized by treatment of 1 with the corresponding primary aryl amines H2NR. Complex 7 was readily converted into the dialkyl and diamido compounds [Ti{η5-C5H4SiMe2[η1-N(C6H3Me2)]}X2] (X=Me (9), CH2Ph (10), CH2SiMe3 (11) or NMe2 (13)) by metathesis using Grignard or organolithium reagents and into the monoalkyl derivative [Ti{η5-C5H4SiMe2[η1-N(C6H3Me2)]}MeCl] (12) by reaction with AlMe3. The molecular structure of complex 7 [Ti{(η5-C5H4SiMe2[η1-N(2,6-Me2C6H3)]}Cl2] was established by X-ray crystallography.
PB Elsevier
SN 0022-328X
YR 1998
FD 1998
LK http://hdl.handle.net/10017/4275
UL http://hdl.handle.net/10017/4275
LA eng
NO We are grateful to the DGICYT (Project PB-92-0178-C) and University of Alcalá for financial support of this research.
DS MINDS@UW
RD 02-may-2024