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A simple and convenient procedure is reported for the synthesis of mono- and 1,2-disubstituted hydrazines and tosylhydrazines by reduction of corresponding hydrazones, phenylhydrazones, azines, and tosylhydrazones by magnesium in methanol at ambient temperature. Graphical abstract
The hydrostannation of activated alkynes proceed in good yields and high regioselectivities catalyzed by CuCl, in the presence of potassium tert-butoxide, triphenylphosphine, and tributylstannane, by generating copper hydride in situ.
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