Potassium Phosphate, Tribasic → 6-Cyclopropyl-3-methanesulfonyl-2-methyl-4-morpholin-4-yl-quinoline

HRID 13666

Reaction equation

HRID 13666 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([CH3:12])[C:6]([S:13]([CH3:16])(=[O:15])=[O:14])=[C:5]2[N:17]1[CH2:22][CH2:21][O:20][CH2:19][CH2:18]1.[CH:23]1(B(O)O)[CH2:25][CH2:24]1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.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>[CH:23]1([C:2]2[CH:3]=[C:4]3[C:9](=[CH:10][CH:11]=2)[N:8]=[C:7]([CH3:12])[C:6]([S:13]([CH3:16])(=[O:14])=[O:15])=[C:5]3[N:17]2[CH2:22][CH2:21][O:20][CH2:19][CH2:18]2)[CH2:25][CH2:24]1

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 2760897Cyclopropylboronic acidHCID 120018106-Bromo-3-methanesulfonyl-2-methyl-4-morpholin-4-yl-quinoline2×

Product 1

HCID 120018056-Cyclopropyl-3-methanesulfonyl-2-methyl-4-morpholin-4-yl-quinolineYield 22.2%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

6-Bromo-3-methanesulfonyl-2-methyl-4-morpholin-4-yl-quinoline (compound of example 6) (0.5 g, 1.3 mmol), cyclopropyboronic acid (0.167 g, 1.95 mmol), potassium phosphate tribasic (0.826 g, 3.89 mmol) and tetrakis(triphenylphosphine)palladium(0) (45 mg, 0.039) were mixed together in dioxane (7 mL) and heated at reflux under argon for 8 h. After extraction with dichloromethane and half-saturated NaCl solution, the crude product was purified chromatography on silica gel in dichloromethane/ethyl acetate with a gradient from 100:0 to 90:10. One obtained 0.1 g (21%) of white crystals. MS: m/z=347 (M+H).

Workup

  1. temperatureheated
  2. temperatureat reflux under argon for 8 h
  3. extractionAfter extraction with dichloromethane and half-saturated NaCl solution
  4. customthe crude product was purified chromatography on silica gel in dichloromethane/ethyl acetate with a gradient from 100:0 to 90:10

Sources & evidence

ORD record
ord-e3a5e222f59c484bab90c43770ac50bc
Source dataset
uspto-grants-2010_06
Patent number
US07728142B2

Linked notes

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