Triethylamine → HCID 71726880, compound

HRID 2365798Notes

Reaction equation

HRID 2365798 reaction equation
C(N(CC)CC)C.[Si:8]([O:15][CH2:16][C@@H:17]([C:19]1[CH:24]=[CH:23][C:22]([F:25])=[C:21]([Cl:26])[CH:20]=1)[OH:18])([C:11]([CH3:14])([CH3:13])[CH3:12])([CH3:10])[CH3:9].[CH3:27][S:28](Cl)(=[O:30])=[O:29]>C(Cl)Cl>[CH3:27][S:28]([O:18][C@H:17]([C:19]1[CH:24]=[CH:23][C:22]([F:25])=[C:21]([Cl:26])[CH:20]=1)[CH2:16][O:15][Si:8]([C:11]([CH3:14])([CH3:13])[CH3:12])([CH3:10])[CH3:9])(=[O:30])=[O:29]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 86696653HCID 86696653, compound

Product 1

HCID 71726880HCID 71726880, compoundYield 98.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

Triethylamine (0.480 mL, 3.44 mmol) was added to (R)-2-(tert-butyldimethylsilyloxy)-1-(3-chloro-4-fluorophenyl)ethanol (0.70 g, 2.30 mmol) in DCM (10 mL) cooled in ice, and then methanesulfonyl chloride (0.213 mL, 2.76 mmol) was added. After 1 hour, the reaction mixture was diluted with DCM, washed with aqueous NaHCO3, dried over MgSO4, filtered, and evaporated to yield (R)-2-(tert-butyldimethylsilyloxy)-1-(3-chloro-4-fluorophenyl)ethyl methanesulfonate (0.87 g, 2.27 mmol, 98.9% yield) as an oil. 1H NMR (400 MHz, CDCl3) δ 7.47-7.44 (m, 1H), 7.29-7.24 (m, 1H), 7.16 (t, 1H), 5.51-5.47 (m, 1H), 3.94-3.89 (m, 1H), 3.81-3.76 (m, 1H), 2.97 (s, 3H), 0.88 (s, 9H), 0.04 (d, 6H).

Workup

  1. temperaturecooled in ice
  2. washwashed with aqueous NaHCO3
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. customevaporated

Sources & evidence

ORD record
ord-344f27b4b09f45dd96e523c4b6086016
Source dataset
uspto-grants-2014_04
Patent number
US08697715B2

Reaction notes

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