p-Xylyl bromide → HCID 57949657, compound

HRID 2427566Notes

Reaction equation

HRID 2427566 reaction equation
[C:1]1(=[O:10])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][NH:2]1.Br[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([CH3:19])=[CH:15][CH:14]=1.C([O-])([O-])=O.[Cs+].[Cs+].C1OCCOCCOCCOCCOCCOC1>CC(C)=O.CCCCCC.C(OCC)(=O)C>[CH3:12][C:13]1[CH:18]=[CH:17][C:16]([CH2:19][N:2]2[CH2:3][C:4]3[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=3)[C:1]2=[O:10])=[CH:15][CH:14]=1

Participants

8

Reactant 4

HCID 7721p-Xylyl bromideHCID 10199PhthalimidineHCID 10796Cesium carbonateHCID 2855718-Crown-6

Product 1

HCID 57949657HCID 57949657, compoundYield 84%

Reagents, catalysts & solvents 3

HCID 180AcetoneSolventHCID 8058HexaneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
70 °C

Procedure

A mixture of 2,3-dihydro-isoindol-1-one (0.133 g, 1 mmol), 1-bromomethyl-4-methyl-benzene (0.222 g, 1.2 mmol), Cs2CO3 (0.816 g, 2.5 mmol), and 18-crown-6 (0.026 g, 0.1 mmol) in acetone (5 mL) was stirred at 70° C. for 16 h. Workup and silica gel column chromatography using 30% ethyl acetate in hexane afforded 2-(4-methyl-benzyl)-2,3-dihydro-isoindol-1-one (0.100 g, 84%). 1H NMR (300 MHz, CDCl3): δ (ppm) 2.36 (s, 3H), 4.24 (s, 2H), 4.76 (s, 2H), 7.15-7.54 (m, 7H), 7.90 (d, 1H).

Sources & evidence

ORD record
ord-5312354cd81245d79bee312ea97d22a1
Source dataset
uspto-grants-2011_06
Patent number
US07968570B2

Reaction notes

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