TY - JOUR
T1 - Reactions of hydrido(hydrosilylene)tungsten complexes with α,β-unsaturated carbonyl compounds
T2 - Selective formation of (η3-siloxyallyl)tungsten complexes
AU - Watanabe, Takahito
AU - Hashimoto, Hisako
AU - Tobita, Hiromi
PY - 2007/9/19
Y1 - 2007/9/19
N2 - Hydrido(hydrosilylene)tungsten complexes (C5Me4R1)(CO)2(H)W=Si(H)[C(SiMe3)3] [R1 = Me (1a), R1 = Et (1b)] reacted with α,β-unsaturated carbonyl compounds R2-C(O)CH=CHR3 (R2 = Me, R3 = H or Ph; R2 = OMe, R3 = H) at room temperature to give exo-anti (η3-siloxyallyl)tungsten complexes (C5Me4R1)(CO)2W[η3-R3HCCHCR2OSiH2{C(SiMe3)3}] almost quantitatively and regioselectively. Possible reaction mechanisms involving a [2+4] cycloaddition process are proposed.
AB - Hydrido(hydrosilylene)tungsten complexes (C5Me4R1)(CO)2(H)W=Si(H)[C(SiMe3)3] [R1 = Me (1a), R1 = Et (1b)] reacted with α,β-unsaturated carbonyl compounds R2-C(O)CH=CHR3 (R2 = Me, R3 = H or Ph; R2 = OMe, R3 = H) at room temperature to give exo-anti (η3-siloxyallyl)tungsten complexes (C5Me4R1)(CO)2W[η3-R3HCCHCR2OSiH2{C(SiMe3)3}] almost quantitatively and regioselectively. Possible reaction mechanisms involving a [2+4] cycloaddition process are proposed.
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U2 - 10.1021/ja074629e
DO - 10.1021/ja074629e
M3 - Article
C2 - 17715927
AN - SCOPUS:35048836750
SN - 0002-7863
VL - 129
SP - 11338
EP - 11339
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 37
ER -