Synthesis of dialkoxy- and alkoxy-amino-disubstituted derivatives of B₁₂H₁₂ ²⁻

Abstract

Dichloromethoxymethane reacts with the sodium salt ofcloso-dodecahydrododecaborate Na₂B₁₂H₁₂ to give disubstituted cluster, which readily decomposes when treated with various reagents. This cluster reacts with water, forming the previously described 1,7-B₁₂H₁₀(OH)_{2 2−}reaction with alcohols results in a novel 1,7-dialkoxy derivative, whereas interaction with morpholine in acetone solution affords the novel anion, 1-O-I-Prⁱ-7-O(CH₂CH₂)N-B₁₂H₁₀ ²⁻. All of these derivatives were isolated as cesium salts and characterized by one- and two-dimensional NMR techniques.