295. Studies on hydrogen cyanide. Part X. The tetrapolymer

Revisiting the Reaction Between Diaminomaleonitrile and Aromatic Aldehydes: a Green Chemistry Approach

“…IR, 1 H-NMR, 13 C-NMR spectral analysis and 2-D experiments allowed us to establish the structures of the momoimines 2a-2k. Compounds 2a,b,d-j have been previously described [3,7,11,18,19] and the physical properties determined during this work are in complete agreement with those reported. It is noteworthy that no complete spectroscopic data for compounds 2a and 2g were found in the literature, while compounds 2c and 2k have not been described previously, although preparation of 2k under acid catalysis and using DMSO as solvent was claimed in a patent [20].…”

Tetrakis(selenodiazole)porphyrazines 1: Tetrakis(selenodiazole)porphyrazine and its Mg(II) and Cu(II) Derivatives. Evidence for their Conversion to Tetrakis(pyrazino)porphyrazines through Octaaminoporphyrazines

“…benzil (Fig. 2, reaction (ii)) [12][13][14]. By reaction with benzil, OAPzMg is converted into Ph 8 TPyzPzMg (Fig.…”

“…A slightly modified procedure with respect to those reported in the literature [12][13][14][15] (see Fig. 2, reaction (ii)) was used for the preparation of this compound.…”

Synthesis, Crystal Structures, and Magnetic Properties of 2D Manganese(II) and 1D Gadolinium(III) Coordination Polymers with 1H‐1,2,3‐Triazole‐4,5‐dicarboxylic Acid

“…H 3 tda was synthesized according to the literature method. [19] Synthesis of [{Mn 3 (tda) 2 (H 2 O) 6 }·6H 2 O] n (1): A mixture of Mn(ClO 4 ) 2 ·6H 2 O (0.145 g, 0.40 mmol), H 3 tda (0.156 g, 1.0 mmol), and H 2 O (8 mL) was put in a 20-mL acid digestion bomb and heated at 150°C for three days. The colorless crystals obtained were collected after washing with water (2 ϫ 5 mL) in a yield of 52 % (92 mg).…”