u201c in which the reagent complex is stable for an interval u201d can mean that the reagent complex does not appreciably dissociate or undergo covalent transformation the solvent or solvent system employed in certain various aspects disclosed here can be a material that is non reactive toward the hydride incorporated into the reagent complex as used above in the phrase u201c material that is non reactive toward the hydride u201d the term u201c non reactive u201d can mean that the material i e the solvent or solvent system does not directly participate in or bring about covalent reaction of the hydride of the reagent complex to a thermodynamically significant extent according to such a criterion suitable solvents or solvent systems can vary depending on the hydride being used in some variations this can include a solvent or solvent system that is aprotic non oxidative or both non limiting examples of suitable solvents or solvent system components can include acetone acetonitrile benzene 1 butanol 2 butanol 2 butanone t butyl alcohol carbon tetrachloride chlorobenzene chloroform cyclohexane 1 2 dichloroethane diethyl ether diethylene glycol diglyme diethylene glycol dimethyl ether 1 2 dimethoxy ethane glyme dme dimethylether dimethyl formamide dmf dimethyl sulfoxide dmso dioxane ethanol ethyl acetate ethylene glycol glycerin heptane hexamethylphosphoramide hmpa hexamethylphosphorous triamide hmpt hexane methanol methyl t butyl ether mtbe methylene chloride n methyl.