Convenient Synthesis of [closo-BH-1-I] and [closo-BH-1,10-I] Anions.

Two iodo derivatives, [closo-BH-1-I] (1) and [closo-BH-1,10-I] (2), were obtained from the parent [closo-BH] anion in a two-step process and about 60% and 80% overall yields, respectively. Molecular and crystal structures of 2[PrN] were established with XRD methods: I422; a = b = 10.1531(1) Å, c = 18.0149(2) Å; α = β = γ = 90°; Z = 2. Synthetic applications of 1[BuN] were demonstrated in a Pd(0)-catalyzed cross-coupling reaction with 4-MeOCHMgBr.