Reaction between rhodium(iii) bisboryls and diborane(4) compounds: evidence for a ς-bond metathesis process

Abstract

The rhodium bis(boryl) complex [RhCl(PPh₃)₂{B(cat)}₂] (cat = 1,2-O₂C₆H₄) reacts with the diborane(4) compounds B₂(O₂R)₂ {O₂R = 1,2-O₂C₆H₃Me-4, 1,2-O₂C₆H₂Bu^t₂-3,5 and dimethyl-L-tartrate [OCH(CO₂Me)CH(CO₂Me)O]} affording unsymmetrical metal bis(boryls) [RhCl(PPh₃)₂{B(cat)}{B(O₂ R)}] and diborane(4) compounds (cat)B–B(O₂R), one possible mechanism for which involves ς-bond metathesis.

References

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