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Chemical Structure| 54405-42-4 Chemical Structure| 54405-42-4

Structure of 54405-42-4

Chemical Structure| 54405-42-4

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Product Details of [ 54405-42-4 ]

CAS No. :54405-42-4
Formula : C10H11NO4
M.W : 209.20
SMILES Code : O=C(OC)CCC1=CC=C([N+]([O-])=O)C=C1
MDL No. :MFCD00126837

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Application In Synthesis of [ 54405-42-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 54405-42-4 ]

[ 54405-42-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 54405-42-4 ]
  • [ 35418-07-6 ]
YieldReaction ConditionsOperation in experiment
95.7% The intermediate W-9 (1.00 g, 4.78 mmol) was dissolved in a mixed solution of MeOH (10 mL) and ethyl acetate (1 mL), After stirring for 10 min, palladium-carbon (10%, 0.2 g) was added and reacted under a hydrogen atmosphere at room temperature for 4 h. The catalyst was filtered out and the filtrate was concentrated under vacuum to give product W-10 (white solid, 0.82 g, 95.7%). Methyl 3-(4-aminophenyl)propanoate1(W-10), H NMR (400 MHz, DMSO-d6) delta 6.84 (d, J = 8.3 Hz, 2H), 6.47 (d, J = 8.4 Hz, 2H), 4.84 (s, 2H), 3.56 (s, 3H), 2.66 (t, J = 7.6 Hz, 2H), 2.51 (t, J = 5.5 Hz, 3H).
91% With 5%-palladium/activated carbon; hydrogen; In methanol; under 1810.07 Torr; for 0.5h; Methyl 3-(4-nitrophenyl)propanoate (450 mg, 2.151 mmol) was dissolved in MeOH (10 ml) and then Pd/C 5% (458 mg, 0.215 mmol) was added. The solution was shaken under hydrogen atmosphere at 35 psi for 30 minutes on a Parr apparatus. The catalyst was filtered off and the solvent removed under vacuum to give methyl 3-(4-aminophenyl)propanoate (350 mg, 1.953 mmol, 91% yield).
91% With 5%-palladium/activated carbon; hydrogen; In methanol; under 1810.07 Torr; for 0.5h; Methyl 3-(4-nitrophenyl)propanoate (450 mg, 2.151 mmol) was dissolved in MeOH (10 ml) and then Pd/C 5% (458 mg, 0.215 mmol) was added. The solution was shaken under hydrogen atmosphere at 35 psi for 30 min. on a Parr apparatus. The catalyst was filtered off and the solvent removed under vacuum to give methyl 3-(4-aminophenyl)propanoate (350 mg, 1.953 mmol, 91% yield).
0.76 g With 5%-palladium/activated carbon; hydrogen; at 20℃; under 760.051 Torr; for 24h; To a solution of 3a (1 g) in ethanol was added Pd/C (5%, 0.1 g) and the mixture was stirred for 24 hrs at room temperature in a hydrogen atmosphere under atmospheric pressure. Insoluble matters were removed using Celite, and the filtrate was concentrated in vacuo to give the desired product 4a (0.76 g) as a yellow solid. To a solution of carboxylic acid (1 equiv) in CH2Cl2 (15 mL) at 0 C was added DMAP (1 equiv) and EDCI (1 equiv). The reaction mixture was stirred at 0 C for 45 minutes. At this time 4a (1 equiv) was added and the mixture was warmed to room temperature and stirred overnight. The resulting mixture was concentrated in vacuo, partitioned between 1.0 M HCl (20 ml) and ethyl acetate (3×20 mL). The combined organic layers were washed with brine (2 × 15 ml), dried over Na2SO4, filtered and concentrated in vacuo. The crude residue was purified by silica gel chromatograph using a mixture of petroleum ether/ethyl acetate (20 : 5, v/v) as eluent to afford the product as a white solid. To a solution of the obtained solid (1 equiv) in 2:3:1 THF/MeOH/H2O (18 ml) was added LiOH·H2O (1.5 equiv). After stirring at room temperature for 4 h, the volatiles were removed under reduced pressure. The residue was acidified with 1N hydrochloric acid solution, and then filtered and the filter cake was washed with 5 mL of water, dried in vacuum to afford a white powder. Recrystallization from 75% EtOH gave the desired compounds 2-17 as white solid.

 

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