Enhanced methods for the undecachlorination of [HCB11H11]− and syntheses of [XCB11Cl11]− from [HCB11Cl11]− (X = Cl, Br, I, NH2)†
Abstract
Utilizing SbCl3/SbCl5 mixtures at reflux, or of TCCA in a solid–solid reaction at 200 °C (with properly described precautions) are described as reliable and convenient procedures for the conversion of [HCB11H11]− into [HCB11Cl11]−. Procedures for the derivatization of the carbon vertex of [HCB11Cl11]− to prepare [XCB11Cl11]− salts (X = Cl, Br, I, NH2) are also formulated.