Methanesulfonyl chloride → HCID 86625869, compound

HRID 2239554Notes

Reaction equation

HRID 2239554 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][NH:10][C:11](=[O:17])[O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[CH:4][CH:3]=1.[CH3:18][S:19](Cl)(=[O:21])=[O:20]>C(Cl)Cl>[CH3:18][S:19]([O:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][CH2:9][NH:10][C:11]([O:12][C:13]([CH3:14])([CH3:16])[CH3:15])=[O:17])=[CH:6][CH:7]=1)(=[O:21])=[O:20]

Participants

4

Reactant 2

HCID 31297Methanesulfonyl chlorideHCID 11831452tert-butyl N-(2-(4-hydroxyphenyl)ethyl)carbamate

Product 1

HCID 86625869HCID 86625869, compoundYield 88.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-Butyl [2-(4-hydroxyphenyl)ethyl]carbamate (3.45 g, 14.54 mmol) was dissolved in dry DCM (70 mL) and cooled in an ice-water bath. Methanesulfonyl chloride (1.99 g, 17.45 mmol) was added followed by TEA (2.21 g, 21.80 mmol). The reaction mixture was stirred at rt for 2 h. The reaction mixture was washed with saturated aqueous NaHCO3, and the organic phase was dried with MgSO4, filtered and evaporated. Column chromatography of the crude product (ISOLUTE SI, (20 g), eluated with Heptane/EtOAc (90:10), Heptane/EtOAc (70:30)) afforded the title compound (4.06 g, 88.5%). 1H NMR (500 MHz, CD3OD): δ 1.43 (s, 9H), 2.80 (t, 2H), 3.20 (s, 3H), 3.29 (q, 2H), 7.25 (d, 2H), 7.31 (d, 2H).

Workup

  1. temperaturecooled in an ice-water bath
  2. washThe reaction mixture was washed with saturated aqueous NaHCO3
  3. dry with materialthe organic phase was dried with MgSO4
  4. filtrationfiltered
  5. customevaporated

Sources & evidence

ORD record
ord-5976e7fc536f4ca986c03be14cbe16eb
Source dataset
uspto-grants-2010_05
Patent number
US07723333B2

Reaction notes

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