Iridium-catalyzed selective N-allylation of hydrazines |
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Authors: | Robert Matunas |
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Institution: | Department of Chemistry, Princeton University, Princeton, NJ 08544, USA |
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Abstract: | A highly chemo- and regioselective iridium-catalyzed allylic amination is described. The reaction of various hydrazones and hydrazides with allylic carbonates proceeds at ambient temperature in the presence of an Ir(COD)Cl]2/pyridine catalyst, ammonium iodide, and diethylzinc to afford the corresponding N-allylation products in high yields with excellent chemo- and regioselectivities. Only the more nucleophilic nitrogen of a given hydrazine derivative undergoes the C-N bond formation to yield a branched allylic isomer as the exclusive product. |
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Keywords: | Iridium Catalysis Hydrazones Hydrazides Hydrazines Amination Allylation |
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