Acetic Acid → HCID 22672522, compound

HRID 481176Notes

Reaction equation

HRID 481176 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([N+:8]([O-:10])=[O:9])[CH:5]=[CH:4][C:3]=1[N:11]=[N:12][C:13]1[CH:18]=[CH:17][C:16]([N:19]([CH2:28][CH2:29][CH2:30][OH:31])[CH2:20][CH2:21][CH2:22][C:23]([O:25]CC)=[O:24])=[CH:15][CH:14]=1.[OH-].[K+].C(O)(=O)C>C1COCC1.O.C(O)C>[Cl:1][C:2]1[CH:7]=[C:6]([N+:8]([O-:10])=[O:9])[CH:5]=[CH:4][C:3]=1[N:11]=[N:12][C:13]1[CH:14]=[CH:15][C:16]([N:19]([CH2:28][CH2:29][CH2:30][OH:31])[CH2:20][CH2:21][CH2:22][C:23]([OH:25])=[O:24])=[CH:17][CH:18]=1

Participants

7

Reactant 3

HCID 176Acetic AcidHCID 14797Potassium HydroxideHCID 22672523Ethyl 4-((4-((2-chloro-4-nitrophenyl)diazenyl)phenyl)(3-hydroxypropyl)amino)butanoate

Product 1

HCID 22672522HCID 22672522, compound

Reagents, catalysts & solvents 3

HCID 702EthanolSolvent2×HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
4 °C

Procedure

To a stirred solution of 20 (4.48 g, 10 mmole) in 40 mL of THF added 40 mL of ethanol followed by a solution of KOH (0.84 g,15 mmol) in 20 mL of water and 20 mL of ethanol. The mixture is stirred overnight and concentrated, The residue suspended in 125 mL of water, treated with 2.6 mL (˜3 eqv.) of acetic acid, and cooled to 4° C. The resulting solid is filtered off, washed with water, and dried. Yield is quantitative. 1H NMR (DMSO-d6) δ8.42 (d, J=2.5 Hz, aromatic proton, 1H), 8.23 (dd, J1=9 Hz, J2=2.5 Hz, aromatic proton, 1H), 7.82 (d, J=9 Hz, 2H), 7.90 (d, J=9 Hz, 1H), 7.03 (d, J=9 Hz, aromatic protons, 2H), 4.8 (br s, OH, 1H), 3.5 (m, aliphatic protons, 6H), 1.86 (t, J=6 Hz, aliphatic protons, 2H), 1.72 (m, aliphatic protons, 4H).

Workup

  1. concentrationconcentrated
  2. filtrationThe resulting solid is filtered off
  3. washwashed with water
  4. customdried
  5. customYield

Sources & evidence

ORD record
ord-c442c165cd8740cc992413675908cc71
Source dataset
uspto-grants-2003_11
Patent number
US06653473B2

Reaction notes

Loading…