Synthesis And Reactions Of Sterically Hindered α-Naphthyl- And Cyclohexylantimony(V) Derivatives

ABSTRACT

Interhalogen and halo-pseudohalogens IX (X=Cl, Br, N₃, NCO), (SCN)₂, S and TeCl₄ add oxidatively to (α-C₁₀H₇)₃Sb to afford (α-C₁₀H₇)₃SbIX, (α-C₁₀H₇)₃ Sb(SCN)₂, (α-C₁₀H₇)₃ SbS and (α-C₁₀H₇)₃SbCl₂, respectively. Reactions of R₃SbCl₂ (R=α-C₁₀H₇, cyclo-C₆H₁₁) with MY (M=Ag, K, Na; Y= SCN, CN, NCO, N₃) yielded the penta-coordinate products, R₃Sb(SCN)₂, R₃>Sb(NCO)₂, (α-C₁₀H₇)₃Sb(CN)₂ and (α-C₁₀ H₇)₃Sb(N)₃)₂. The compounds (α-C₁₀H₇)₃SbIN₃, (α-C₁₀H₇)₃ SbI(NCO), (α-C₁₀H₇)₃SbI(SCN) and (α-C₁₀H₇)₃SbI(SeCN) are also accessible by selective replacement reactions of (α-C₁₀H₇)3SbICl or (α-C₁₀H₇)₃SbIBr with the corresponding metal salts. Hydrolysis of R₃SbCl₂(R=α-C₁₀H₇, cyclo-C₆>H₁₁) afforded (R₃SbCl)₂O-type compounds. (α-C₁₀H₇)₃Sb inserts into the N-chloro bond of N-chlorosuccinimide and N-cholorophthalimide to give and . These haloimides may also be prepared by the interaction of (α-C₁₀H₇)₃SbCl₂ with the corresponding sodium salt of the imido moiety.

ACKNOWLEDGMENTS

The authors thank the Director, Regional Sophisticated Instrumentation Centre, Lucknow, for microanalytical and spectral data and the Council of Scientific & Industrial Research, New Delhi, for financial assistance.