Tributylphosphine → 3-(1-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenyl}-ethylsulfanyl)-benzoic acid methyl ester

HRID 424828Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([Cl:8])[C:3]=1[N:9]1[C:13]([CH2:14][O:15][C:16]2[CH:21]=[CH:20][C:19]([CH:22](O)[CH3:23])=[C:18]([CH3:25])[CH:17]=2)=[C:12]([CH:26]([CH3:28])[CH3:27])[N:11]=[N:10]1.[CH3:29][O:30][C:31](=[O:39])[C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([SH:38])[CH:33]=1.CCCCP(CCCC)CCCC>C1(C)C=CC=CC=1>[CH3:29][O:30][C:31](=[O:39])[C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([S:38][CH:22]([C:19]2[CH:20]=[CH:21][C:16]([O:15][CH2:14][C:13]3[N:9]([C:3]4[C:2]([Cl:1])=[CH:7][CH:6]=[CH:5][C:4]=4[Cl:8])[N:10]=[N:11][C:12]=3[CH:26]([CH3:27])[CH3:28])=[CH:17][C:18]=2[CH3:25])[CH3:23])[CH:33]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a room temperature solution of 1-{4-[3-(2,6-dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenyl}-ethanol (70 mg, 0.167 mmol) in toluene (2 mL) are added 3-mercapto-benzoic acid methyl ester (28 mg, 0.167 mmol) and tri-N-butylphosphine (62 μL, 0.251 mmol). The reaction mixture is cooled to 0° C. To the reaction mixture is added 1,1′-(azocarbonyl)-dipiperidine (63 mg, 0.251 mmol). The reaction mixture is warmed to room temperature and stirred overnight. The reaction mixture is concentrated and the residue is chromatographed (40 g SiO2, 0% to 30% EtOAc/Hexanes) to yield 3-(1-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenyl}-ethylsulfanyl)-benzoic acid methyl ester (62 mg, 65%).

Workup

temperatureThe reaction mixture is warmed to room temperature
concentrationThe reaction mixture is concentrated
customthe residue is chromatographed (40 g SiO2, 0% to 30% EtOAc/Hexanes)

Sources & evidence

ORD record: ord-47e1216174604bacb72470913ec224cf
Source dataset: uspto-grants-2012_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08106077B2

Reaction notes

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