4-Nitrophenol → HCID 117716267, compound
Reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1)([O-:3])=[O:2].[C:11](=[O:14])([O-])[O-].[K+].[K+].[I-].[Na+].P(O)([O-])([O-])=O.[Na+].[Na+].Cl[CH:27]([CH3:42])[C:28]([O:30][CH2:31][CH2:32][O:33][CH2:34][CH2:35][O:36][C:37](=[O:41])[CH:38](Cl)[CH3:39])=[O:29]>CC(C)=O>[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([O:10][CH:27]([CH3:42])[C:28]([O:30][CH2:31][CH2:32][O:33][CH2:34][CH2:35][O:36][C:37](=[O:41])[CH:38]([O:14][C:11]2[CH:8]=[CH:9][C:4]([N+:1]([O-:3])=[O:2])=[CH:5][CH:6]=2)[CH3:39])=[O:29])=[CH:6][CH:5]=1)([O-:3])=[O:2]Participants
Procedure
To a mixture of 4-nitrophenol (2.6 Kg), potassium carbonate (11.5 Kg), sodium iodide (100 g), and disodium phosphate (100 g) in acetone (30 L) was added 2-chloropropionic acid 2-[2-(2-chloro-propionyloxy)-ethoxy]-ethyl ester (3 Kg). The reaction mixture was refluxed with stirring for 48 hours. The acetone was distilled off and cold water (25 L) was added. The crude product was extracted into chloroform (15 L) and the chloroform extract was dried over anhydrous sodium sulphate. Chloroform was distilled off and the final product was precipitated from methanol. The solid was collected by filtration, dried and recrystallised to give (4-nitrophenoxy)-propionic acid 2-{2-[2-(4-nitrophenoxy)-propionyloxy]-ethoxy}-ethyl ester (745 grams) as a white powder. The product was characterized by 1H NMR (CDCl3) δ 1.65 (d, 3H, CH3), 3.65 (t, 2H, CH2), 4.30 (t, 2H, CH2), 4.85 (q, 1H, CH), 6.90 (d, 2H, Ar), 8.20 (d, 2H, Ar).
Workup
- temperatureThe reaction mixture was refluxed
- distillationThe acetone was distilled off
- additioncold water (25 L) was added
- extractionThe crude product was extracted into chloroform (15 L)
- extractionthe chloroform extract
- dry with materialwas dried over anhydrous sodium sulphate
- distillationChloroform was distilled off
- customthe final product was precipitated from methanol
- filtrationThe solid was collected by filtration
- customdried
- customrecrystallised
Sources & evidence
- ORD record
- ord-4e2e14d65cdd4b36811799dcda6bb87b
- Source dataset
- uspto-grants-2014_12
- Patent number
- US08901347B1
Reaction notes
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