Ethyl Acetate → 2-[1-(4-Phenoxyphenyl)-ethyl]-2,3-dihydroisoindol-1-one

HRID 2427560Notes

Reaction equation

HRID 2427560 reaction equation
[O:1]([C:8]1[CH:13]=[CH:12][C:11]([CH:14]([NH2:16])[CH3:15])=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C[O:18][C:19](=O)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=1[CH2:26]Br.C([O-])([O-])=O.[K+].[K+].C(OCC)(=O)C>C1(C)C=CC=CC=1>[O:1]([C:8]1[CH:9]=[CH:10][C:11]([CH:14]([N:16]2[CH2:26][C:21]3[C:20](=[CH:25][CH:24]=[CH:23][CH:22]=3)[C:19]2=[O:18])[CH3:15])=[CH:12][CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 592071-(4-Phenoxyphenyl)ethan-1-amineHCID 2734813Methyl 2-(bromomethyl)benzoate

Product 1

HCID 579494992-[1-(4-Phenoxyphenyl)-ethyl]-2,3-dihydroisoindol-1-oneYield 44.3%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A mixture of 1-(4-phenoxyphenyl)ethylamine (213 mg, 1 mmol), 2-bromomethyl-benzoic acid methyl ester (250 mg, 1.1 mmol), and K2CO3 (1 g, 7.2 mmol) in toluene (10 mL) was heated at reflux with stirring for 16 h. Workup and silica gel column chromatography using a gradient of hexanes to 30% ethyl acetate in hexanes afforded 2-[1-(4-phenoxyphenyl)-ethyl]-2,3-dihydroisoindol-1-one (146 mg, 44%). GC/MS gave: m/z (rel.int.) 329 (M+, 46), 314 (100), 196 (8) and 77 (8). 1H NMR (300 MHz, CDCl3): δ 1.68 (d, 3H), 4.03 (d, 1H), 4.34 (d, 1H), 5.80 (q, 1H), 6.98 (br t, 4H), 7.10 (t, 1H), 7.49 (dt, 2H), 7.33 (br m, 5H), 7.88 (dd, 1H).

Workup

  1. temperaturewas heated
  2. temperatureat reflux

Sources & evidence

ORD record
ord-4113793e606849b4af7ade7a1db477bc
Source dataset
uspto-grants-2011_06
Patent number
US07968570B2

Reaction notes

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