ines having the formula R2 NH (where R may be, for example, an alkyl such as methyl or ethyl, or an aryl group such as phenyl or toluyl); primary amines having the formula RNH2 (where R is the same as above); imidazoles such as 2-methylimidazole and 2-phenylimidazole; and basic salts such as ammonia, tetramethylammonium borohydride (Me4 NBH4). tetrabutylammonium borohydride (Bu4 NBH4), tetrabutyla