Hydrochloric Acid → HCID 23517377, compound

HRID 1836058Notes

Reaction equation

HRID 1836058 reaction equation
I[C:2]1[CH:3]=[C:4]([CH:9]=[CH:10][C:11]=1[OH:12])[C:5]([O:7][CH3:8])=[O:6].[CH3:13][O:14][C:15]1[CH:20]=[CH:19][C:18]([C:21]#[CH:22])=[CH:17][CH:16]=1.Cl>CN(C=O)C.N1CCCCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[CH3:8][O:7][C:5]([C:4]1[CH:9]=[CH:10][C:11]2[O:12][C:21]([C:18]3[CH:19]=[CH:20][C:15]([O:14][CH3:13])=[CH:16][CH:17]=3)=[CH:22][C:2]=2[CH:3]=1)=[O:6]

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 2510201-Ethynyl-4-methoxybenzeneHCID 11346465Methyl 4-hydroxy-3-iodobenzoate

Product 1

HCID 23517377HCID 23517377, compoundYield 71%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 23501187piperidine N,N-dimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of Methyl 3-Iodo-4-hydroxybenzoate (0.7 g, 2.5 mmol), 4-Methoxyphenylacetylene (0.33 g, 2.5 mmol), Pd(Cl)2(PPh3)2 (0.05 g) and CuI (0.03 g) in DMF/Piperidine (20 ml) was heated at 60° C. After 2 hr, the reaction was cooled and poured into 2N HCl. The aqueous layer was extracted with EtOAc and then separated, dried, concentrated to give a solid. The solid was triturated with MeOH, filtered to give 142 (0.5 g, 71%): Mp=157-159° C.; 1H NMR (CDCl3) δ 8.28 (d, 1 H, J=1.3 Hz), 7.97 (dd, 1 H, J=8.5 Hz, 1.7 Hz), 7.82-7.79 (m, 2 H), 7.51 (d, 1 H, 8.5 Hz), 6.99 (d, 2 H, J=8.3 Hz), 6.93 (d, 1 H, J=0.9 Hz), 3.94 (s, 3 H), 3.87 (s, 3 H); MS 283 (M+H)+

Workup

  1. temperaturethe reaction was cooled
  2. extractionThe aqueous layer was extracted with EtOAc
  3. customseparated
  4. customdried
  5. concentrationconcentrated
  6. customto give a solid
  7. customThe solid was triturated with MeOH
  8. filtrationfiltered

Sources & evidence

ORD record
ord-644271507e2c49bfb99d31fdb9771a50
Source dataset
uspto-grants-2004_08
Patent number
US06774248B2

Reaction notes

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