Cu(II) Coordination Polymers as Vehicles in the A 3 Coupling

A family of benzotriazole based coordination compounds, obtained in two steps and good yields from commercially available materials, formulated as [Cu (L ) (MeCN) ]·2ClO ·MeCN (1), [Cu (L )(NO ) ]·MeCN (2), [Zn (L ) (H O) ]·2ClO ·2MeCN (3), [Cu (L ) Cl ] (4), [Cu (L ) Cl ] (5), [Cu (L ) Br ]·4MeCN·Cu Br (6), [Cu (L ) (MeCN) ]·2BF (7), [Cu (L ) (CF SO ) ] (8), [Zn (L ) (MeCN) ]·2CF SO (9), [Cu (L ) (H O) ]·4CF SO ·4Me CO (10), and [Cu (L ) (CF SO ) ]·2CF SO ·Me CO (11), are reported. These air-stable compounds were tested as homogeneous catalysts for the A coupling synthesis of propargylamine derivatives from aldehyde, amine, and alkyne under a noninert atmosphere. Fine tuning of the catalyst resulted in a one-dimensional (1D) coordination polymer (CP) (8) with excellent catalytic activity in a wide range of substrates, avoiding any issues that would inhibit its performance.