Glaser-Hay hetero-coupling in a bimetallic regime: A Ni(II)/Ag(i) assisted base, ligand and additive free route to selective unsymmetrical 1,3-diynes
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2017
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Abstract
A Ni(OAc)2/Ag(OTf) catalysed coupling of aryl alkynes and propargylic alcohol/ether/ester gave the corresponding unsymmetrical 1,3-diynes in good to excellent yields. The reaction does not require bases, ligands or additives and shows excellent hetero-selectivity, thereby addressing the current challenges in the field of coupling of two different terminal alkynes. � 2017 The Royal Society of Chemistry.
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