Potassium Iodide → Ethyl 2-methyl-2-(3-nitrophenoxy)propanoate

HRID 1483299Notes

Reaction equation

[N+:1]([C:4]1[CH:5]=[C:6]([OH:10])[CH:7]=[CH:8][CH:9]=1)([O-:3])=[O:2].Br[C:12]([CH3:19])([CH3:18])[C:13]([O:15][CH2:16][CH3:17])=[O:14].C([O-])([O-])=O.[K+].[K+].[I-].[K+].C([O-])(O)=O.[Na+]>C(O)C>[CH3:18][C:12]([O:10][C:6]1[CH:7]=[CH:8][CH:9]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=1)([CH3:19])[C:13]([O:15][CH2:16][CH3:17])=[O:14]

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 3-nitrophenol (0.50 g, 3.6 mmole), ethyl bromodimethylacetate (0.64 g, 3.3 mmole), K2CO3 (1.3 g, 9.4 mmole), potassium iodide (catalytic) in absolute ethanol (8 mL) was heated at 70° C. for 18 h. The reaction mixture was cooled, poured into a saturated solution of NaHCO3, and extracted with dichloromethane. The product, ethyl 2-methyl-2-(3-nitrophenoxy)propanate, was obtained after purification by column chromatography over silica gel. 1H NMR (CDCl3): δ 7.85 (dt, 1H, J=1.2 and 8.1 Hz), 7.68 (t, 1H, J=2.4 Hz), 7.40 (t, 1H, J=8.4 Hz), 7.19-7.13 (m, 1H), 4.26 (q, 2H, J=7.2 Hz), 1.64 (s, 6H), 1.26 (t, 3H, J=7.21),

Workup

temperatureThe reaction mixture was cooled
extractionextracted with dichloromethane

Sources & evidence

ORD record: ord-939a84761ab4429f984af8637344e6ed
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09416112B2

Reaction notes

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