Isoquinoline → HCID 118549287, compound

HRID 1501316Notes

Reaction equation

HRID 1501316 reaction equation
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][N:2]=1.[F:11][C:12]1[CH:19]=[CH:18][CH:17]=[CH:16][C:13]=1[CH:14]=[O:15].FC(F)(F)S(O[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[Si](C)(C)C)(=O)=O.[F-].[K+].C1OCCOCCOCCOCCOCCOC1>C1COCC1>[F:11][C:12]1[CH:19]=[CH:18][CH:17]=[CH:16][C:13]=1[CH:14]1[O:15][CH:1]2[C:10]3[C:5]([CH:4]=[CH:3][N:2]2[C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][C:26]1=2)=[CH:6][CH:7]=[CH:8][CH:9]=3

Participants

7

Reactant 5

HCID 8405IsoquinolineHCID 2855718-Crown-6HCID 67970o-FluorobenzaldehydeHCID 522689Potassium FluorideHCID 33840072-(Trimethylsilyl)phenyl trifluoromethanesulfonate

Product 1

HCID 118549287HCID 118549287, compoundYield 64%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Following the general procedure, treatment of isoquinoline (00.064 g, 59 μL, 0.50 mmol) and 2-fluorobenzaldehyde (0.095 g, 79 μL, 0.75 mmol) with 2-(trimethylsilyl)phenyl trifluoromethanesulfonate (0.179 g, 146 μL, 0.60 mmol) in the presence of KF (0.070 g, 1.2 mmol) and 18-crown-6 (0.317 g, 1.2 mmol) in THF (2.0 mL) at −10° C. to room temperature for 12 hrs followed by flash column chromatography (Pet. ether/EtOAc=93/07) of the crude reaction mixture afforded 6-(2-fluorophenyl)-4bH,6H-benzo[4,5][1,3]oxazino[2,3-a]isoquinoline as inseparable mixture of diastereomers as a yellow solid (0.105 g, 64% yield, dr determined by 1H NMR analysis of crude reaction mixture is 3:1).

Workup

  1. customat −10° C. to room temperature
  2. customfor 12 hrs
  3. customreaction mixture

Sources & evidence

ORD record
ord-d9d1c0d11b3048438f37ed98df238458
Source dataset
uspto-grants-2015_12
Patent number
US09206196B1

Reaction notes

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