2021
DOI: 10.1016/j.tetlet.2021.153487
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Synthesis, structural characterization and chromatic features of new 2-phenyl-1-benzopyrylium and 2-phenyl-styryl-1-benzopyrylium amino-based blue dyes

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Cited by 7 publications
(12 citation statements)
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“…5,7OH 2 st4′NMe 2 was obtained from the condensation between 2,4,6-trihydroxybenzaldehyde (1.3 × 10 –4 mol, 20 mg) and p -dimethylaminostyrylmethylketone (1.6 × 10 –4 mol, 30 mg) in 259 μL (2 mL/1 mmol) of acetic acid and in the presence of hexafluorphosphoric acid (0.5 mL/1 mmol), as previously reported 13 . The mixture was left to react at room temperature during 24 h under stirring.…”
Section: Methodsmentioning
confidence: 98%
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“…5,7OH 2 st4′NMe 2 was obtained from the condensation between 2,4,6-trihydroxybenzaldehyde (1.3 × 10 –4 mol, 20 mg) and p -dimethylaminostyrylmethylketone (1.6 × 10 –4 mol, 30 mg) in 259 μL (2 mL/1 mmol) of acetic acid and in the presence of hexafluorphosphoric acid (0.5 mL/1 mmol), as previously reported 13 . The mixture was left to react at room temperature during 24 h under stirring.…”
Section: Methodsmentioning
confidence: 98%
“…7NEt 2 4′NMe 2 was synthesized by acidic aldol, condensation between 4-diethylaminosalicylaldehyde and 4′-dimethylaminoacetophenone 13 . 4-diethylaminosalicylaldehyde (1.3 × 10 –3 mol, 250 mg) and 4′-dimethylaminoacetophenone (2.5 × 10 –3 mol, 410 mg) were weighted in a round bottom flask and dissolved in 12.5 mL of a mixture of ethyl acetate: methanol (2:1).…”
Section: Methodsmentioning
confidence: 99%
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