Toluene → HCID 24856034, compound

HRID 606010Notes

Reaction equation

HRID 606010 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([CH:8]=[C:9]([C:11]3[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=3)[N:10]=2)[CH:7]=1.[OH:18][CH2:19][C:20]1[CH:21]=[C:22](B(O)O)[CH:23]=[CH:24][CH:25]=1.C1(C)C=CC=CC=1.C(=O)([O-])[O-].[Na+].[Na+]>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.ClCCl.C(#N)C>[Cl:17][C:14]1[CH:15]=[CH:16][C:11]([C:9]2[N:10]=[C:5]3[CH:4]=[CH:3][C:2]([C:24]4[CH:25]=[C:20]([CH2:19][OH:18])[CH:21]=[CH:22][CH:23]=4)=[CH:7][N:6]3[CH:8]=2)=[CH:12][CH:13]=1

Participants

8

Reactant 4

HCID 1140TolueneHCID 10340Sodium CarbonateHCID 8282916-Bromo-2-(4-chlorophenyl)imidazo[1,2-a]pyridineHCID 2734662[3-(Hydroxymethyl)phenyl]boronic acid

Product 1

HCID 24856034HCID 24856034, compoundYield 76.6%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Procedure

Under a stream of nitrogen, 210 mg of 6-bromo-2-(4-chlorophenyl)imidazo[1,2-a]pyridine, 155 mg of 3-(hydroxymethyl)phenylboronic acid and 24 mg of tetrakis(triphenylphosphine)palladium are placed in a microwave tube containing 3 ml of toluene degassed beforehand under a stream of nitrogen, 3 ml of acetonitrile and 3 ml of a 2M solution of sodium carbonate. The tube is placed in a microwave apparatus and irradiated at 150° C. for 15 min. The organic phase is separated and dried and the filtrate is concentrated under reduced pressure. The residue obtained is taken up with dichloromethane. The precipitate is recovered by filtration, washed with dichloromethane and dried in a desiccator under reduced pressure. 175 mg of compound are obtained. Mp=181-182° C. 1H NMR (DMSO-d6, δ in ppm): 4.57 (d, J=5.5 Hz, 2H); 5.23 (t, J=5.6 Hz, 1H); from 7.28 to 7.71 (m, 8H); 7.97 (m, J=8.5 Hz, 2H); 8.41 (s, 1H); 8.84 (m, 1H). M+H=335.

Workup

  1. customirradiated at 150° C. for 15 min
  2. customThe organic phase is separated
  3. customdried
  4. concentrationthe filtrate is concentrated under reduced pressure
  5. customThe residue obtained
  6. filtrationThe precipitate is recovered by filtration
  7. washwashed with dichloromethane
  8. customdried in a desiccator under reduced pressure

Sources & evidence

ORD record
ord-a44b927c1c8b468b8947667c2a4a028a
Source dataset
uspto-grants-2011_03
Patent number
US07915284B2

Reaction notes

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