triphenylphosphine in acetone Irradiation (UV/VIS); illuminated for 7 h; treated with excess ether; filtered, filtrate evapd.; residue refluxed for 1 h with soln. of MeI in ether; mixt. passed as pentane soln. through an Al2O3 bed; evapd. to dryness;

NAF in dichloromethane; water mixt. of iodonium salt, NaF, H2O and CH2Cl2 stirred at 25°C for 35 min; org. phase sepd. off, filtered through a short alumina plug and evapd., the residue is a mixt. of C6H5I and 2-fluoro-p-carborane; solid dissolved in dry CCl4; soln. satd. with Cl2 at 5°C, and then evapd., to give the mixt. of C6H3Cl2I and the fluorocarborane; the latter extd. with pentane, filtered through an alumina plug, evapd. to dryness, vac. sublimation; elem. anal.;