Nitrogen → HCID 59626058, compound

HRID 401714Notes

Reaction equation

HRID 401714 reaction equation
I[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1.C([Mg]Cl)(C)C.N#N.[F:19][C:20]([F:30])([F:29])[C:21]1[CH:28]=[CH:27][C:24]([CH:25]=[O:26])=[CH:23][CH:22]=1>C1COCC1>[OH:26][CH:25]([C:24]1[CH:23]=[CH:22][C:21]([C:20]([F:19])([F:29])[F:30])=[CH:28][CH:27]=1)[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 947NitrogenHCID 679964-(Trifluoromethyl)benzaldehydeHCID 69273Methyl 4-iodobenzoateHCID 178418918HCID 178418918, compound

Product 1

HCID 59626058HCID 59626058, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent3×

Procedure

To a solution of methyl 4-iodobenzoate 63a (8 mmol, 2.1 g) in 10 mL of dry THF was added i-propyl magnesium chloride (2M in THF, 8.4 mmol, 4.2 mL) dropwise under N2 at −20° C. The solution was stirred for 30 min. The formed Grignard reagent in THF was then added slowly to a solution of 4-trifluoromethylbenzaldehyde (8 mmol, 1.1 mL) in THF (20 mL) at −40° C. After 20 min, the reaction mixture was allowed to warm up slowly to room temperature. The reaction was quenched with saturated aqueous NH4Cl and extracted with EtOAc. The organic layer was concentrated and purified by flash column chromatography (silica gel, 15% EtOAc/hexanes) to give the 63c as white solid.

Workup

  1. waitAfter 20 min
  2. customThe reaction was quenched with saturated aqueous NH4Cl
  3. extractionextracted with EtOAc
  4. concentrationThe organic layer was concentrated
  5. custompurified by flash column chromatography (silica gel, 15% EtOAc/hexanes)

Sources & evidence

ORD record
ord-55546f70c9a84380a53cd87b456eebb1
Source dataset
uspto-grants-2014_06
Patent number
US08741887B2

Reaction notes

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