Alkenyl (or aryl) iodide (or bromide) is readily reduced with CrCl2 is N,N-dimethylformamide at 25°C to gice the corresponding organochromium species which adds selectively to an aldehyde moiety without affecting the coexisting ketone or cyano group of the substrate.
烯基(或芳基)
碘化物(或
溴化物)很容易在25°C下用CrCl 2还原为N,N-二甲基甲酰胺,以产生相应的有机
铬物种,该物种选择性地添加到醛基中,而不会影响底物的共存酮或
氰基。