Disperse Yellow 232 synthesis
- Product Name:Disperse Yellow 232
- CAS Number:35773-43-4
- Molecular formula:C20H17ClN2O3
- Molecular Weight:368.81
17754-90-4
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105-56-6
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95-85-2
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35773-43-4
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Yield:35773-43-4 83%
Reaction Conditions:
with oxalic acid;L-proline in ethanol at 85; for 12 h;Schlenk technique;
Steps:
4.2. Typical experimental procedure for synthesis of 3-(benzo[d]oxazol-2-yl)-2H- chromen-2-one
General procedure: A mixture of salicylaldehyde (0.50 mmol), o-aminophenol (0.60mmol) and ethyl cyanoacetate (0.55 mmol) was placed in a 10-mLSchlenk tube, then 0.0350 g LTTM and 0.5 mL ethanol were added.The reaction mixture was stirred at the indicated temperature for 12 h.After completion of the reaction, Na2CO3 solution and DMF were addedto the mixture and vigorously stirred for a moment. Finally, the precipitatewas separated by filtration and washed with ethanol withoutfurther purification to afford the corresponding pure adducts.
References:
An, Yue;Gao, Jiali;Lü, Chengwei;Liu, Ao;Xiao, Yudi;Zou, Yizhen [Dyes and Pigments,2020,vol. 179]
17754-90-4
239 suppliers
$7.00/25g
105-53-3
726 suppliers
$5.00/25g
95-85-2
396 suppliers
$13.00/25g
35773-43-4
36 suppliers
inquiry