Ethynyltributyltin → HCID 86691400, compound

HRID 540189Notes

Reaction equation

HRID 540189 reaction equation
[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[C:9](OC(F)(F)F)[CH:10]=2)[N:5]=[C:4]([N:17]2[CH2:23][C:22]3[CH:24]=[CH:25][CH:26]=[CH:27][C:21]=3[S:20](=[O:29])(=[O:28])[CH2:19][CH2:18]2)[CH:3]=1.[CH2:30]([Sn](CCCC)(CCCC)C#C)[CH2:31]CC>CN(C)C=O.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>[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[C:9]([C:30]#[CH:31])[CH:10]=2)[N:5]=[C:4]([N:17]2[CH2:23][C:22]3[CH:24]=[CH:25][CH:26]=[CH:27][C:21]=3[S:20](=[O:29])(=[O:28])[CH2:19][CH2:18]2)[CH:3]=1

Participants

5

Reactant 2

HCID 621176EthynyltributyltinHCID 712545694-(4-Chloro-6-(trifluoromethoxy)quinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide

Product 1

HCID 86691400HCID 86691400, compoundYield 58.8%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Procedure

To a degassed solution of 4-(6-bromo-4-chloroquinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide (880 mg, 2 mmol, prepared in analogy to 4-(4-chloro-6-(trifluoromethoxy)quinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide in Example 17-1) in N,N-dimethylformamide (50 mL), tributyl(ethynyl)tin (760 mg, 2.4 mmol) and tetrakis(triphenylphosphine)palladium(0) (232 mg, 0.2 mmol) was added under argon. After being refluxed for 2 hours, the reaction mixture was concentrated in vacuo and the residue was portioned in a mixture of ethyl acetate (100 mL) and a saturated aqueous solution of potassium fluoride (100 mL). After the mixture being stirred vigorously for 1 hour, the separated aqueous layer was extracted with ethyl acetate (100 mL×2). The combined organic layers were dried over sodium sulfate and concentrated in vacuo to afford 0.45 g of the crude product.

Workup

  1. temperatureAfter being refluxed for 2 hours
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. additionthe residue was portioned in a mixture of ethyl acetate (100 mL)
  4. extractionthe separated aqueous layer was extracted with ethyl acetate (100 mL×2)
  5. dry with materialThe combined organic layers were dried over sodium sulfate
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-c9fd736a65be4482b8fb5409938b9f9b
Source dataset
uspto-grants-2014_10
Patent number
US08871756B2

Reaction notes

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