Boron tribromide → HCID 87364811, compound

HRID 1850095Notes

Reaction equation

HRID 1850095 reaction equation
[F:1][C:2]([F:19])([F:18])[C:3]([N:5]1[CH2:9][CH2:8][CH:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[O:16]C)[CH2:6]1)=[O:4].B(Br)(Br)Br.C([O-])(O)=O.[Na+]>C(Cl)Cl>[F:19][C:2]([F:1])([F:18])[C:3]([N:5]1[CH2:9][CH2:8][CH:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[OH:16])[CH2:6]1)=[O:4]

Participants

5

Reactant 3

HCID 25134Boron tribromideHCID 516892Sodium BicarbonateHCID 584046022,2,2-Trifluoro-1-[3-(2-methoxyphenyl)pyrrolidin-1-yl]ethan-1-one

Product 1

HCID 87364811HCID 87364811, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To the title compound of Example 43 Step A (1.2 g, 4.4 mmol) in CH2Cl2 (15 mL) at 0° C. was added BBr3 (1M in CH2Cl2, 9.8 mL, 9.8 mmol). After warming to rt and allowing to stir for 18 h, sat'd NaHCO3 (aq.) was added slowly. The reaction was then extracted with CH2Cl2. The combined organic layers were dried and used in the next step without further purification. MS (ESI): mass calcd. for C12H12F3NO2, 259.2. m/z found, 260.1 [M+H]+. 1H NMR (CDCl3): 7.22-7.11 (m, 2H), 6.97-6.88 (m, 1H), 6.87-6.77 (m, 1H), 4.26-4.14 (m, 1H), 4.04-3.94 (m, 0.5H), 3.93-3.84 (m, 0.5H), 3.82-3.71 (m, 1H), 3.70-3.53 (m, 2H), 2.44-2.26 (m, 1.5H), 2.25-2.13 (m, 0.5H).

Workup

  1. extractionThe reaction was then extracted with CH2Cl2
  2. customThe combined organic layers were dried
  3. customused in the next step without further purification

Sources & evidence

ORD record
ord-28987f04bb78457e9d969d103fffe296
Source dataset
uspto-grants-2015_02
Patent number
US08957059B2

Reaction notes

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