Syntheses of novel bis-terpyridine and cyclic phenylazomethine as organic modules in organic–metallic hybrid materials

Selective on-surface covalent coupling based on metal-organic coordination template

“…The molecular precursors p - DBTB and m - DBTB were synthesized according to published procedure 62 by the condensation reaction between corresponding enones and pyridinium salt in the presence of ammonium acetate.…”

New solid-state Eu(iii)-containing metallo-supramolecular polymers: morphology control and optical wave-guiding properties

“…Ligand 1 can be obtained via a three step synthetic pathway (Scheme 1). 20,21 The first step is an aldol condensation between terephthalaldehyde and 2-acetylpyridine with potassium hydroxide as base to form the E-configurated conjugated enone 1a. The second step is a Michael addition with 2-acetylpyridine and potassium hydroxide as base which resulted in the 1,5-dicarbonyl compound 1b.…”

“…20,21 (2E,2'E)-3,3'-(1,4-phenylene)bis(1-(pyridin-2-yl)prop-2-en-1-one) (1a) Terephthalaldehyde (1.8 g, 13.42 mmol, 1 eq) was added to a mixture of potassium hydroxide (1.5 g, 26.84 mmol, 2 eq) in water (10 mL) and methanol (250 mL). After complete dissolution, 2acetylpyridine (3 mL, 26.84 mmol, 2 eq) was added and a yellow precipitate occurred.…”

“…The terpyridine-based ditopic ligand was prepared according to a modified reported literature three step synthetic procedure. 20,21 (2E,2 0 E)-3,3 0 -(1,4-phenylene)bis(1-(pyridin-2-yl)prop-2-en-1-one) (1a). Terephthalaldehyde (1.8 g, 13.42 mmol, 1 eq.)…”

Design, syntheses and applications of chiral transition metal complexes bearing phosphorus-containing ligands

“…The palladacycles (S)-119, [112c] (R,R)-150aa, [151d,206] compounds 196b [262] and 200b [263] were prepared according to literature methods. All other reactants and reagents were used as supplied.…”