ChemicalBook CAS DataBase List 1,4-Bis(4-cyanostyryl)benzene

1,4-Bis(4-cyanostyryl)benzene synthesis

5synthesis methods

Product Name:1,4-Bis(4-cyanostyryl)benzene
CAS Number:13001-40-6
Molecular formula:C24H16N2
Molecular Weight:332.4

1552-41-6 Synthesis

(4-CYANOBENZYL)PHOSPHONIC ACID DIETHYL ESTER

1552-41-6
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623-27-8 Synthesis

623-27-8
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13001-40-6
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Yield:13001-40-6 52%

Reaction Conditions:

with potassium tert-butylate in tetrahydrofuran at 20; for 1 h;

Steps:

11.11.1 example 11.1:
A mixture of 0.5 g (3.7 mmol) terephthalaldehyde was reacted with 1.98 g (7.75 mmol) 4- cyanobenzyl)-phosphonsaure-diethylester (example 2.1 ), 0.89 g (7.75 mmol) KOtBu and 40 mL of THF at room temperature for one hour. (0475) The solvent from the reaction mixture was removed. The residue was worked up with dichloro- methane and water. The insoluble solid was filtered off. The organic layer was dried and the solvent removed. Both solids were recrystallized with DMF. 0.64 g (52%) of a yellow solid were obtained.

References:

BASF SE;MANGOLD, Hannah Stephanie;KOENEMANN, Martin;IVANOVICI, Sorin;KUEHN, Michael WO2019/238532, 2019, A1 Location in patent:Page/Page column 69-70

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623-27-8 Synthesis

623-27-8
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