HCID 3792615, compound → Ethyl 2-hydroxy-5-[[4-[(3-methyl-2-pyridinylamino)sulfonyl]phenyl]ethynyl]benzoate

HRID 1464163Notes

Reaction equation

HRID 1464163 reaction equation
[C:1]([C:3]1[CH:4]=[CH:5][C:6]([OH:14])=[C:7]([CH:13]=1)[C:8]([O:10][CH2:11][CH3:12])=[O:9])#[CH:2].I[C:16]1[CH:21]=[CH:20][C:19]([S:22]([NH:25][C:26]2[C:31]([CH3:32])=[CH:30][CH:29]=[CH:28][N:27]=2)(=[O:24])=[O:23])=[CH:18][CH:17]=1>O1CCCC1.C(N(CC)CC)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[OH:14][C:6]1[CH:5]=[CH:4][C:3]([C:1]#[C:2][C:16]2[CH:21]=[CH:20][C:19]([S:22]([NH:25][C:26]3[C:31]([CH3:32])=[CH:30][CH:29]=[CH:28][N:27]=3)(=[O:24])=[O:23])=[CH:18][CH:17]=2)=[CH:13][C:7]=1[C:8]([O:10][CH2:11][CH3:12])=[O:9]

Participants

7

Reactant 2

HCID 3792615HCID 3792615, compoundHCID 19423366Ethyl 5-ethynyl-2-hydroxybenzoate

Product 1

HCID 19423387Ethyl 2-hydroxy-5-[[4-[(3-methyl-2-pyridinylamino)sulfonyl]phenyl]ethynyl]benzoate

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 8028TetrahydrofuranSolventHCID 8471TriethylamineSolvent

Procedure

Tetrakis(triphenylphosphine)palladium (0.29 g, 0.25 mmol) and copper(I)iodide (0.095 g, 0.5 mmol) were, added to a solution of ethyl 5-ethynyl-2-hydroxybenzoate (10.5 g, 55 mmol) and 4-iodo-N-(3-methyl-2-pyridinyl)benzenesulfonamide (18.7 g, 50 mmol) in tetrahydrofuran (75 ml) and triethylamine (75 ml) at 55° C. After 2 h the solid product was collected with filtration and washed with hydrochloric acid (1M). The material was boiled in formic acid (300 ml) for 15 nun. and filtered. Water (200 ml) was added and the product crystallized upon cooling. Yield 17.3 g (79%).

Workup

  1. filtrationAfter 2 h the solid product was collected with filtration
  2. washwashed with hydrochloric acid (1M)
  3. filtrationand filtered
  4. additionWater (200 ml) was added
  5. customthe product crystallized
  6. temperatureupon cooling

Sources & evidence

ORD record
ord-79c175d99c2743b3868acff9fb4b39ae
Source dataset
uspto-grants-1994_04
Patent number
US05302718

Reaction notes

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