ChemicalBook CAS DataBase List 1,2-BIS(2-PYRIDYL)ETHYLENE

1,2-BIS(2-PYRIDYL)ETHYLENE synthesis

4synthesis methods

Product Name:1,2-BIS(2-PYRIDYL)ETHYLENE
CAS Number:1135-32-6
Molecular formula:C12H10N2
Molecular Weight:182.22

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Yield: 58%

Reaction Conditions:

with acetic anhydride at 120; for 3 h;

Steps:

1
To a 100 ml recovery flask, 4-methylpyridine (4.68 g, 50.3 mmol), 4-pyridinecarboxaldehyde (5.40 g, 50.4 mmol), and acetic anhydride (5.20 g, 51.0 mmol ) Was added, and the mixture was heated and stirred at 120 ° C. for 3 hours. Thereafter, the resulting brown solution was cooled to room temperature, and then an aqueous solution (40 ml) of NaOH (4.0 g, 100 mmol) was added for washing, and the precipitated solid was filtered using Kiriyama Funnel (registered trademark). The obtained brown solid was recrystallized from ethanol (9 ml) and water (35 ml), then filtered and air-dried. 5.28 g (58% yield) of the desired 1,2-di (4-pyridyl) ethylene was obtained.

References:

SHOWA DENKO K.K.;KISHIDA, KEISUKE;WATANABE, YOSHIHIRO;OKUMURA, YOSHIKUNI JP2016/37448, 2016, A Location in patent:Paragraph 0026; 0027; 0028

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4916-57-8 Synthesis