Am etal-free, visible-light-mediated directC ÀH bond trifluoromethylation of N,N-dialkylhydrazones with an NADH coenzyme modelc atalysth as been developed. The use of NADH coenzyme model makes this reaction more meaningful. Advantages of this reaction include avoidance of transition metal catalysts, high levelso ffunctional group tolerance, and mild reactionc onditions. This reaction represents am ethod to synthesize substituted hydrazones.

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The cross-coupling reaction of allyl boron ester with 1°/2°/3°-halogenated alkanes in the presence of copper has been developed for the first time, which provides a mild and efficient method for the construction of saturated C(sp(3))-C(sp(3)) bonds. This protocol shows excellent compatibility with the nonactivated primary, secondary, and even tertiary halogenated alkanes under mild conditions.

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