Hydrochloric Acid → HCID 86760840, compound

HRID 2108509Notes

Reaction equation

HRID 2108509 reaction equation
[F:1][C:2]([F:18])([F:17])[C:3]([NH:5][CH2:6][CH2:7][C:8]1[CH:13]=[C:12]([O:14][CH3:15])[CH:11]=[CH:10][C:9]=1[I:16])=[O:4].C([O-])([O-])=O.[K+].[K+].[OH-].[K+].[CH2:27](Br)[CH:28]=[CH2:29].Cl>C1(C)C=CC=CC=1.[N+](CCCC)(CCCC)(CCCC)CCCC.[Br-]>[CH2:29]([N:5]([CH2:6][CH2:7][C:8]1[CH:13]=[C:12]([O:14][CH3:15])[CH:11]=[CH:10][C:9]=1[I:16])[C:3](=[O:4])[C:2]([F:1])([F:17])[F:18])[CH:28]=[CH2:27]

Participants

8

Reactant 5

HCID 313Hydrochloric AcidHCID 7841Allyl bromideHCID 11430Potassium CarbonateHCID 14797Potassium HydroxideHCID 222927722,2,2-Trifluoro-N-[2-(2-iodo-5-methoxyphenyl)ethyl]acetamide

Product 1

HCID 86760840HCID 86760840, compoundYield 77.8%

Reagents, catalysts & solvents 2

HCID 74236Tetrabutylammonium BromideCatalystHCID 1140TolueneSolvent

Procedure

A solution of N-trifluoroacetyl-2-iodo-5-methoxyphenethylamine (23.8 g, 63.8 mmol) in toluene (425 mL) was sequentially treated with K2CO3 (12.4 g, 89.8 mmol), KOH (11.6 g, 207 mmol), n-Bu4NBr (2.2 g, 6.9 mmol) and allyl bromide (10.7 g, 89.8 mmol). The mixture was stirred at 80 C for 3.5 hours, cooled to 20 C, acidified with 10% aqueous HCl, separated and the aqueous phase extracted with ether (500 mL). The combined organic phases were washed with brine (200 mL), dried with Na2SO4 and concentrated to give 20.5 g of a brown oil. 1H NMR (400 MHz, CDCl3), mixture of rotamers d 7.67 (m, 1H), 6.80 (m, 1H), 6.57 (m, 1H), 5.9-5.6 (bm, 1H), 5.27 (m, 2H), 4.11 (d, J=6 Hz, 0.5H), 3.85 (d, J=6 Hz, 0.5H), 3.77 (m, 3H), 3.55 (m, 2H), 3.00 (m, 2H). MS calculated for C14H15F3INO2+H: 414, observed: 414.

Workup

  1. temperaturecooled to 20 C
  2. customseparated
  3. extractionthe aqueous phase extracted with ether (500 mL)
  4. washThe combined organic phases were washed with brine (200 mL)
  5. dry with materialdried with Na2SO4
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-0c0fb65c8a904de180c7476dae37dfe3
Source dataset
uspto-grants-2009_04
Patent number
US07514422B2

Reaction notes

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