Dichloromethane → 4-[2-(Toluene-4-sulfonyloxymethyl)phenyl]piperidine-1-carboxylic acid t-butyl ester

HRID 887689Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=2[CH2:20][OH:21])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C1N2CCN(CC2)C1.C(Cl)Cl.[S:33](Cl)([C:36]1[CH:42]=[CH:41][C:39]([CH3:40])=[CH:38][CH:37]=1)(=[O:35])=[O:34]>CCOC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=2[CH2:20][O:21][S:33]([C:36]2[CH:42]=[CH:41][C:39]([CH3:40])=[CH:38][CH:37]=2)(=[O:35])=[O:34])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

Conditions

Temperature: 0 °C

Procedure

4-(2-Hydroxymethylphenyl)piperidine-1-carboxylic acid t-butyl ester (0.4 g, 1.0 mmol, 1.0 eq.) and triethylenediamine (220 mg, 2.0 mmol, 1.4 eq.) were dissolved in DCM (11 mL, 170 mmol). The mixture was cooled at 0° C. under nitrogen, TsCl (290 mg, 1.5 mmol, 1.1 eq.) was added, and the mixture was stirred at 0° C. for an additional 60 minutes. The mixture was diluted with EtOAc (50 mL) and washed with water (2×25 mL). The organic layer was dried over anhydrous Na2SO4, filtered and concentrated by rotary evaporation to yield the title compound (500 mg), which was used without further purification.

Workup

washwashed with water (2×25 mL)
dry with materialThe organic layer was dried over anhydrous Na2SO4
filtrationfiltered
concentrationconcentrated by rotary evaporation

Sources & evidence

ORD record: ord-248ad5f03a4542a084e97a992357597a
Source dataset: uspto-grants-2012_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08247433B2

Reaction notes

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