4-Aminophthalhydrazide synthesis
- Product Name:4-Aminophthalhydrazide
- CAS Number:3682-14-2
- Molecular formula:C8H7N3O2
- Molecular Weight:177.16
3682-19-7
70 suppliers
$60.00/100mg
3682-14-2
157 suppliers
$77.00/1g
Yield:3682-14-2 85%
Reaction Conditions:
with 10% Pd/C;hydrogen at 35; under 3040.2 Torr; for 4 h;
Steps:
1.3
Transfer the product B to a 5 L hydrogenation vessel, add 3 g of 10 wt% palladium on carbon palladium, heat to 35 ° C, while the introduction of hydrogen pressure to 4atm, continue to heat constant pressure reaction 4 hours, after the end of the reaction, the hydrogen into nitrogen, Adjust the pH to 3-4 with 35 wt% concentrated hydrochloric acid, continue heating to 100 ° C, stop the introduction of nitrogen, filter hot, and cool the filtrate to HTC, a large number of precipitated precipitation, precipitate out completely after the filter, the filtrate for organic solvent recovery, filter cake with 400ml deionized water washing, drying, to be 214g isluminolide (4-amino phthalide)
References:
CN106810501,2017,A Location in patent:Paragraph 0050
2307-00-8
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$6.00/250mg
3682-14-2
157 suppliers
$77.00/1g
610-22-0
110 suppliers
$18.00/1g
3682-14-2
157 suppliers
$77.00/1g
3676-85-5
227 suppliers
$45.00/1g
3682-14-2
157 suppliers
$77.00/1g
610-27-5
421 suppliers
$6.00/5g
3682-14-2
157 suppliers
$77.00/1g