UV Absorber 326 synthesis
- Product Name:UV Absorber 326
- CAS Number:3896-11-5
- Molecular formula:C17H18ClN3O
- Molecular Weight:315.8
![6-tert-Butyl-4-methyl-2-[(4-chloro-2-nitrophenyl)azo]phenol](/CAS/GIF/22617-04-5.gif)
22617-04-5
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3896-11-5
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Yield:3896-11-5 97.4%
Reaction Conditions:
with borane-ammonia complex in toluene at 50; for 5 h;
Steps:
15.15.2 15.2 Preparation of UV-326
In a 250mL three-necked flask, add 0.2g of the prepared 1% Pd/MgO catalyst,10g UV-326 azo intermediate, about 60mL toluene, 10g ammonia borane,Start stirring after heating to 50°C (stirring rate is about 600rpm), and react for 5h;After the reaction, the catalyst is filtered and the organic layer is separated,The composition of hydrogenation products in the filtrate was analyzed by high performance liquid chromatography; the solvent was evaporated under reduced pressure,After washing with deionized water and methanol, and drying, the target product is obtained.
References:
CN112645892,2021,A Location in patent:Paragraph 0174; 0177-0178; 0193
56750-11-9
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3896-11-5
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$6.00/10g
2409-55-4
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3896-11-5
383 suppliers
$6.00/10g