Vat Red 32 synthesis

4synthesis methods

Product Name:Vat Red 32
CAS Number:2379-77-3
Molecular formula:C36H16Cl2N2O4
Molecular Weight:611.43

Perylene-3,4,9,10-tetracarboxylic acid and 4-Chlorobenzenamine condensation.

2-(4-chlorophenyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione

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Yield:2379-77-3 96%

Reaction Conditions:

with 1-methyl-1H-imidazole;DBN;sodium n-propoxide;1,8-diazabicyclo[5.4.0]undec-7-ene at 140 - 160; for 6 h;

Steps:

4 Example 4

Dehydrated 90g N-methylimidazole and 10g were added to a 500ml four-necked flask DBU and 200g BDN,12 g of N-(4-chlorophenyl)naphthalimide and 0.36 g of sodium n-propoxide were added while stirring.After heating at 160 ° C and reacting at 140 ° C for 6 hours, cooling, the reaction system was transferred to a rotary evaporator.Distilling under reduced pressure to recover the solvent;The solid product was washed sequentially with water and DMF.Get the red product,The yield was 96%.

References:

CN109535767,2019,A Location in patent:Paragraph 0033; 0034

106-47-8 Synthesis