Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]

Weber L, Meyer M, Stammler H-G, Neumann B (2003)
Organometallics 22(24): 5063-5068.

Journal Article | Published | English

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Abstract
Reaction of equimolar amounts of the phosphaalkene HP=C(NMe2)(2) (6c) and carbene complex [(CO)(5)W=C(OSiMe3)(c-C3H5)] (11a) in n-pentane afforded the novel phosphaalkene complex [(CO)(5)W-kappa-P{Me3SiP=C(H)NMe2}] (12). Under comparable conditions carbene complexes [(CO)(5)W=C(OR)(c-C3H5)] (11b, R = Me; 11c, R = Et) were converted by the phosphaalkene to dinuclear 1,3-diphosphetane complexes [{(CO)(5)W}(2)-kappa-P{RP-C(H)(NMe2)- P(R)-C(H)NMe2}] (13b,c). In contrast with this, treatment of [(CO)(5)W=C(OEt)(c-C5H9)] (11d) with XP=C(NMe2)(2) (X = H, D) gave rise to the formation of a bis(pentacarbonyltungsten) complex of a PH-functionalized 1,3-diphosphetane [{(CO)(5)W}(2)-kappa-P{HP-C(X)(NMe2)-P(H)- C(X)NMe2}] (14). The novel products were characterized by elemental analyses and IR and H-1, C-13, and P-31 NMR spectra. Moreover, the molecular structures of 12, 13c, and 14 were elucidated by X-ray structural analyses.
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Weber L, Meyer M, Stammler H-G, Neumann B. Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]. Organometallics. 2003;22(24):5063-5068.
Weber, L., Meyer, M., Stammler, H. - G., & Neumann, B. (2003). Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]. Organometallics, 22(24), 5063-5068.
Weber, L., Meyer, M., Stammler, H. - G., and Neumann, B. (2003). Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]. Organometallics 22, 5063-5068.
Weber, L., et al., 2003. Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]. Organometallics, 22(24), p 5063-5068.
L. Weber, et al., “Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]”, Organometallics, vol. 22, 2003, pp. 5063-5068.
Weber, L., Meyer, M., Stammler, H.-G., Neumann, B.: Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]. Organometallics. 22, 5063-5068 (2003).
Weber, Lothar, Meyer, Marco, Stammler, Hans-Georg, and Neumann, Beate. “Reactivity of the Inversely Polarized Phosphaalkene HP=C(NMe2)2 toward Carbene Tungsten Complexes [(CO)5W=C(R1)OR2] (R1 = c-C3H5, c-C5H9; R2 = Me, Et, Me3Si): A Novel Access to η1-Phosphaalkene Complexes [(CO)5W-P(R2)=C(H)NMe2]”. Organometallics 22.24 (2003): 5063-5068.
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