2-(Tributylstannyl)pyridine → HCID 18182276, compound

HRID 1359301Notes

Reaction equation

HRID 1359301 reaction equation
[CH2:1]([C:8]1[C:9]([C:15]#[C:16][C:17]2([OH:25])[CH:22]3[CH2:23][CH2:24][N:19]([CH2:20][CH2:21]3)[CH2:18]2)=[N:10][CH:11]=[C:12](Br)[CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[Sn](CCCC)(CCCC)CCCC>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.C1(C)C=CC=CC=1>[CH2:1]([C:8]1[C:9]([C:15]#[C:16][C:17]2([OH:25])[CH:22]3[CH2:23][CH2:24][N:19]([CH2:20][CH2:21]3)[CH2:18]2)=[N:10][CH:11]=[C:12]([C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][N:26]=2)[CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 2

HCID 6077842-(Tributylstannyl)pyridineHCID 18182170HCID 18182170, compound

Product 1

HCID 18182276HCID 18182276, compoundYield 67%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

A mixture of 150 mg of 3-(3-benzyl-5-bromo-2-pyridyl)ethynyl-3-quinuclidinol, 150 mg of (2-pyridyl)tributyltin, 86 mg of tetrakis(triphenylphosphine)palladium(0) and 3.5 ml of toluene was heated under stirring in an oil bath kept at 110° C. for 2 hours in a nitrogen atmosphere. After cooling as it was, NH-silica gel was added to the reaction solution and the solvent was removed. The residue was subjected to NH-silica gel column chromatography using 2.5% methanol/ethyl acetate, to give 100 mg of the target compound.

Workup

  1. temperaturewas heated
  2. temperatureAfter cooling as it
  3. additionNH-silica gel was added to the reaction solution
  4. customthe solvent was removed

Sources & evidence

ORD record
ord-7adfbde81e4741528d2fedbada126ff2
Source dataset
uspto-grants-2003_07
Patent number
US06599917B1

Reaction notes

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