Reactions of 4-diphenylphosphino benzoic acid with organotin oxides and -oxy-hydroxide

Abstract

The reactions of p-diphenylphosphinobenzoic acid (LCOOH) with various organotin precursors have been carried out. Accordingly, the reaction of $[n\hbox {-BuSn(O)}(\hbox {OH}]_{\mathrm{n}}$ with LCOOH afforded the hexameric compound, $[n\hbox {-BuSn(O)O}_{2}\hbox {C}$–$\hbox {C}_{6}\hbox {H}_{4}$–$p\hbox {-PPh}_{2}]_{6}$ (1). On the other hand, the reaction of LCOOH with $[n\hbox {-Bu}_{2}\hbox {SnO}]_{\mathrm{n}}$ gave the tetrameric compound $[\{{n}\hbox {-Bu}_{2}\hbox {SnO}_{2}\hbox {C}$–$\hbox {C}_{6}\hbox {H}_{4}$–$p\hbox {-PPh}_{2}\}_{2}\hbox {O}]_{2}$ (2). The 1-D coordination polymers $[\hbox {R}_{3}\hbox {SnO}_{2}\hbox {C}$–$\hbox {C}_{6}\hbox {H}_{4}$–$p\hbox {-}\hbox {P(O)Ph}_{2}]_{\mathrm{n}}$, $[\hbox {R} = n\hbox {-Bu}$ (3), $\hbox {R} = \hbox {Ph}$ (4)] were prepared in the reaction of $[n\hbox {-Bu}_{3}\hbox {Sn}]_{2}\hbox {O}$ or $[\hbox {Ph}_{3}\hbox {Sn}]_{2}\hbox {O}$ with LCOOH. The compounds 1–4 were structurally characterized by multinuclear NMR spectroscopic and single crystal X-ray diffraction studies.

Graphical Abstract

SYNOPSIS The reactions of p-diphenylphosphinobenzoic acid with various organotin precursors have been shown to afford hexameric compound 1, tetrameric compound 2 and 1-D polymeric compounds 3 and 4. The compounds 1–4 were structurally characterized by multinuclear NMR spectroscopic and single crystal X-ray diffraction methods.