Piperidinium acetate → HCID 178456912, compound

HRID 1620573Notes

Reaction equation

[F:1][C:2]([F:22])([F:21])[C:3]1[CH:16]=[C:15]([C:17]([F:20])([F:19])[F:18])[CH:14]=[CH:13][C:4]=1[CH2:5][N:6]1[CH2:10][CH2:9][CH:8]([CH:11]=O)[CH2:7]1.[CH2:23]([NH:26][C:27]1[CH2:31][S:30][C:29](=[O:32])[N:28]=1)[C:24]#[CH:25].C([O-])(=O)C.[NH2+]1CCCCC1>CC(O)C>[F:22][C:2]([F:1])([F:21])[C:3]1[CH:16]=[C:15]([C:17]([F:20])([F:19])[F:18])[CH:14]=[CH:13][C:4]=1[CH2:5][N:6]1[CH2:10][CH2:9][CH:8](/[CH:11]=[C:31]2/[C:27]([NH:26][CH2:23][C:24]#[CH:25])=[N:28][C:29](=[O:32])[S:30]/2)[CH2:7]1

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of 1-[2,4-bis(trifluoromethyl)benzyl]pyrrolidine-3-carbaldehyde (1.1 g) in 2-propanol (10 mL) were added 4-(prop-2-yn-1-ylamino)-1,3-thiazol-2(5H)-one (0.782 g) and piperidinium acetate (0.491 g). The reaction mixture was stirred at 80° C. for 2 hr, and the solvent was evaporated under reduced pressure. Water was added to the residue, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) and silica gel column chromatography (NH, ethyl acetate/hexane) to give the title compound (0.760 g).

Workup

customthe solvent was evaporated under reduced pressure
additionWater was added to the residue
extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with saturated brine
dry with materialdried over anhydrous magnesium sulfate
customthe solvent was evaporated under reduced pressure
customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane) and silica gel column chromatography (NH, ethyl acetate/hexane)

Sources & evidence

ORD record: ord-27331aadaf4e4e2aa72a361a02cea0a1
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08772277B2

Reaction notes

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