(.eta.4-1,5-cyclooctadiene)bis(1,3-dicyclohexylimidazolin-2-ylidene)iridium(I) trifluoroacetate in further solvent(s) byproducts: H2; (N2); using Schlenk techniques; dissolving of 2 mmol pinacolborane and 1.0 molpercent of Ir(COD)(1,3-dicyclohexylimidazolin-2-ylidene)2(CF3CO2) in 2-chlorotoluene; stirring and heating at 40°C for 10 h; monitoring by GC-MS; removal of solvent under vac. at room temp.; chromy. over silica gel, eluting with CH2Cl2;