Synthesis and characterization of closo-decahydrido-decaborate-phosphine mediated by palladium(0) complexes

Abstract

We report an efficient and selective preparation of an apical mono-functionalized closo-decahydrido-decaborate anion [B₁₀H₁₀]²⁻ with aromatic or aliphatic tertiary phosphines. Starting from [N(n-C₄H₉)₄]₂[1-B₁₀H₉I] and 0.25–0.5 equiv. of Pd(0)-PR₃, the corresponding [N(n-C₄H₉)₄][1-B₁₀H₉PR₃] compounds were obtained in high isolated yields under mild conditions. Additionally, a plausible mechanism was proposed based on experimental evidence.