Triethylamine → HCID 59410067, compound

HRID 1805158Notes

Reaction equation

HRID 1805158 reaction equation
[F:1][C:2]1([F:22])[CH2:6][N:5]([C:7]2[CH:12]=[CH:11][C:10]([N+:13]([O-:15])=[O:14])=[C:9]([C:16]([F:19])([F:18])[F:17])[CH:8]=2)[C@H:4]([CH2:20][OH:21])[CH2:3]1.C(N(CC)CC)C.[CH3:30][S:31](Cl)(=[O:33])=[O:32]>C(Cl)Cl>[CH3:30][S:31]([O:21][CH2:20][C@@H:4]1[CH2:3][C:2]([F:1])([F:22])[CH2:6][N:5]1[C:7]1[CH:12]=[CH:11][C:10]([N+:13]([O-:15])=[O:14])=[C:9]([C:16]([F:18])([F:19])[F:17])[CH:8]=1)(=[O:33])=[O:32]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 59410112HCID 59410112, compound

Product 1

HCID 59410067HCID 59410067, compoundYield 97.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of (S)-(4,4-difluoro-1-(4-nitro-3-(trifluoromethyl)phenyl)pyrrolidin-2-yl)methanol (275 mg, 0.84 mmol) in anhydrous DCM was added triethylamine (171 mg, 235 μL, 1.7 mmol) followed by methane sulfonyl chloride (106 mg, 72 μL, 0.93 mmol) at 0° C. The reaction mixture was allowed to warm to room temperature and stirred for 1 h. The reaction was diluted with DCM and quenched with 3 mL saturated NaHCO3. The organic layer was separated and washed with brine, dried over Na2SO4, filtered, and concentrated to obtain (S)-(4,4-difluoro-1-(4-nitro-3-(trifluoromethyl)phenyl)pyrrolidin-2-yl)methyl methanesulfonate as a yellow solid (330 mg, 96%). LC/MS: m/z 405 (M+H)+ at 1.71 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. customquenched with 3 mL saturated NaHCO3
  2. customThe organic layer was separated
  3. washwashed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-7815bcc6974843a1ad2be80842080ed0
Source dataset
uspto-grants-2013_01
Patent number
US08354427B2

Reaction notes

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