Activation of a CNXylyl ancillary ligand in the reaction of electron-deficient alkynes with a phosphido niobocene complex |
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| Authors: | Antiñolo Antonio García-Yuste Santiago Lopez-Solera Maria Isabel Otero Antonio Pérez-Flores Juan C Reguillo-Carmona Rebeca Villaseñor Elena |
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| Institution: | Department of Inorganic Chemistry, University of Castilla-La Mancha, Ciudad Real, Spain. Antonio.Otero@uclm.es |
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| Abstract: | The niobium phosphido complex Nb(eta5-C5H4SiMe3)2-(CNXylyl)(PPh2)] (2) undergoes an unusual cycloaddition reaction with electron-deficient alkynes to give the novel five-membered heteroniobacycles Nb(eta5-C5H4SiMe3)2(kappaC-C(=N(Xylyl))C(CO2Me)=C(R)PPh2-kappaP)] (R = H 3 and R = Me 4). |
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