Triethylamine → HCID 57608391, compound

HRID 2172738Notes

Reaction equation

HRID 2172738 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([CH:9]=[CH:10][CH:11]=1)[O:5][CH2:6][CH2:7][OH:8].C(N(CC)CC)C.[CH3:19][S:20](Cl)(=[O:22])=[O:21]>C(Cl)Cl>[CH3:19][S:20]([O:8][CH2:7][CH2:6][O:5][C:4]1[CH:9]=[CH:10][CH:11]=[C:2]([Br:1])[CH:3]=1)(=[O:22])=[O:21]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 105367272-(3-BroMo-phenoxy)-ethanol

Product 1

HCID 57608391HCID 57608391, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To an ice cold mixture of 2-(3-bromophenoxy)ethanol (15) (16.06 g, 74.0 mmol) and triethylamine (9.12 g, 90.13 ml) in anhydrous CH2Cl2 (120 ml) under argon was slowly added neat methanesulfonyl chloride (6 ml, 77.2 mmol). The reaction mixture was stirred at 0° C. for 15 min. The mixture was concentrated under reduced pressure and the residue was partitioned between EtOAc and water. The combined organics were washed with water and brine, dried over MgSO4, and concentrated under reduced pressure to give 2-(3-bromophenoxy)ethyl methanesulfonate (16) as a brownish oil. This product was used without further purification in the next reaction. Yield (21.32 g, 98%): 1H NMR (400 MHz, CDCl3) δ 7.16 (t, J=7.8 Hz, 1H), 7.11-7.14 (m, 1H), 7.07 (m, 1H), 6.39 (ddd, J=7.6, 2.5, 1.8 Hz, 1H), 4.56 (m, 2H), 4.22 (m, 2H), 3.08 (s, 3H).

Workup

  1. concentrationThe mixture was concentrated under reduced pressure
  2. customthe residue was partitioned between EtOAc and water
  3. washThe combined organics were washed with water and brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-542ae2a84d5c4435965b2839d628a32b
Source dataset
uspto-grants-2015_06
Patent number
US09056849B2

Reaction notes

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