Tunable Prussian blue analogues for the selective synthesis of propargylamines through A3 coupling†
Carlos
Marquez, 
a
Francisco G.
Cirujano,
a
Cédric
Van Goethem,
a
Dirk
De Vos
*a
and
Trees
De Baerdemaeker
*a
a
Francisco G.
Cirujano,
a
Cédric
Van Goethem,
a
Dirk
De Vos
*a
and
Trees
De Baerdemaeker
*a
Abstract
M1[Co(CN)6]2/3-type Prussian blue analogues (M1–Co PBAs) were studied as catalysts for the synthesis of propargylamines via A3 coupling of phenylacetylene, benzaldehyde and piperidine. Cu0.86Zn0.14–Co PBA was the best catalyst for the reaction by combining the high conversion obtained with Cu–Co PBA with the excellent selectivity obtained with Zn–Co PBA.
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