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3-Nitro-5-(octadecyloxy)benzoic acid methyl ester → 3-Amino-5-(octadecyloxy)benzoic acid methyl ester

HRID 1757818
Notes
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Reaction equation

HRID 1757818 reaction equation
[CH3:1][O:2][C:3](=[O:32])[C:4]1[CH:9]=[C:8]([O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH3:28])[CH:7]=[C:6]([N+:29]([O-])=O)[CH:5]=1>[Pd].C1COCC1>[CH3:1][O:2][C:3](=[O:32])[C:4]1[CH:9]=[C:8]([O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH3:28])[CH:7]=[C:6]([NH2:29])[CH:5]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 1

HCID 536989543-Nitro-5-(octadecyloxy)benzoic acid methyl ester

Product 1

HCID 193890883-Amino-5-(octadecyloxy)benzoic acid methyl esterYield 99%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 3.55 g of 3-nitro-5-(octadecyloxy)benzoic acid methyl ester and 0.75 g of 10% palladium on carbon in 100 ml of THF was shaken under aninitial hydrogen pressure of 52 psi until uptake ceased after 1.5 hours. The catalyst was removed by filtration and the filtrate was concentrated at reduced pressure to give 3.28 g of pure 3-amino-5-(octadecyloxy)benzoicacid methyl ester.

Workup

  1. customThe catalyst was removed by filtration
  2. concentrationthe filtrate was concentrated at reduced pressure

Sources & evidence

ORD record
ord-4f5110a3e09e4748a14d612ebd00c76a
Source dataset
uspto-grants-1995_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05446189

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes