Dimethylformamide → HCID 66836014, compound

HRID 2404432Notes

Reaction equation

HRID 2404432 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH:8]([O:18][CH:19]2[CH2:24][CH2:23][N:22]([CH3:25])[CH2:21][CH2:20]2)[C:9]2S[C:11]3[CH:17]=[CH:16][CH:15]=[CH:14][C:12]=3[N:13]=2)[CH:5]=[CH:6][CH:7]=1.[Cu][C:27]#[N:28].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.C[N:72](C)C=O>O>[NH:13]1[C:12]2[CH:14]=[CH:15][CH:16]=[CH:17][C:11]=2[N:72]=[C:9]1[CH:8]([O:18][CH:19]1[CH2:24][CH2:23][N:22]([CH3:25])[CH2:21][CH2:20]1)[C:4]1[CH:3]=[C:2]([CH:7]=[CH:6][CH:5]=1)[C:27]#[N:28]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 66835733HCID 66835733, compoundHCID 178418546HCID 178418546, compound

Product 1

HCID 66836014HCID 66836014, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 2-[(3-bromophenyl)(1-methylpiperidin-4-yloxy)methyl]benzothiazole (200 mg) in N,N-dimethylformamide (2.5 mL) and water (0.2 mL) are added copper(I) cyanide (180 mg), bis(dibenzylidenacetone)palladium (14.3 mg) and Xantphos (14.4 mg). The tube is evacuated, filled with argon and sealed. After stirring at 120° C. for 48 h, the mixture is diluted with water then extracted with ethyl acetate. The pooled organic extracts are washed with water, brine, dried over magnesium sulfate and concentrated under reduced pressure. The residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 100/0/0 to 92.5/7.5/0.75) to afford 3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]benzonitrile

Workup

  1. customThe tube is evacuated
  2. additionfilled with argon
  3. customsealed
  4. additionthe mixture is diluted with water
  5. extractionthen extracted with ethyl acetate
  6. washThe pooled organic extracts are washed with water, brine
  7. dry with materialdried over magnesium sulfate
  8. concentrationconcentrated under reduced pressure
  9. customThe residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 100/0/0 to 92.5/7.5/0.75)

Sources & evidence

ORD record
ord-bb9c93d5b7c2445f806a19dfea7deaf4
Source dataset
uspto-grants-2014_08
Patent number
US08802664B2

Reaction notes

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