Cl[CH2:2][CH2:3][CH2:4][O:5][C:6]1[CH:11]=[CH:10][C:9]([CH3:12])=[C:8]([CH3:13])[CH:7]=1.[N-:14]=[N+]=[N-].[Na+]>C1(C)C=CC=CC=1.[N+](CCCC)(CCCC)(CCCC)CCCC.[Br-]>[CH3:13][C:8]1[CH:7]=[C:6]([CH:11]=[CH:10][C:9]=1[CH3:12])[O:5][CH2:4][CH2:3][CH2:2][NH2:14]9.05 (45.6 mnol) of 1-chloro-3-(3,4-dimethylphenoxy)- propane obtained in step 1 was dissolved in 200 ml of toluene. To the resulting solution were added 14.8 g of NaN3, 2.9 g of n-Bu4NBr and 15.2 g of KI and the mixture was refluxed For 24 hours. The reaction mixture was washed with water and concentrated under a reduced pressure. The resulting residue was purified by chromatography (ethyl acetate: hexane=1:10) to obtain 9.04 g (yield 97%) of the title compound as a brown oil.
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