Water → 3-(4-Chloro-phenyl)-6-[4-(4-pyrrolidin-1-ylmethyl-phenyl)-but-1-ynyl]-pyridazin

HRID 1916543Notes

Reaction equation

C(N(CC)CC)C.Cl[C:9]1[N:10]=[N:11][C:12]([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][CH:16]=2)=[CH:13][CH:14]=1.[CH2:22]([C:26]1[CH:37]=[CH:36][C:29]([CH2:30][N:31]2[CH2:35][CH2:34][CH2:33][CH2:32]2)=[CH:28][CH:27]=1)[CH2:23][C:24]#[CH:25].O>CN(C=O)C.[Cu]I>[Cl:21][C:18]1[CH:19]=[CH:20][C:15]([C:12]2[N:11]=[N:10][C:9]([C:25]#[C:24][CH2:23][CH2:22][C:26]3[CH:37]=[CH:36][C:29]([CH2:30][N:31]4[CH2:35][CH2:34][CH2:33][CH2:32]4)=[CH:28][CH:27]=3)=[CH:14][CH:13]=2)=[CH:16][CH:17]=1

Participants

Conditions

Temperature: 100 °C

Procedure

Under an argon atmosphere 0.1 mL (0.72 mmol) triethylamine, 3 mg (0.02 mmol) CuI and 8 mg (0.01 mmol) bis-triphenylphosphane-palladium(II)-chloride are added to a solution of 77 mg (0.34 mmol) 3-chloro-6-(4-chloro-phenyl)-pyridazine and 73 mg (0.34 mmol) 1-(4-but-3-ynyl-benzyl)-pyrrolidine (Example 2e) in 4 mL DMF and the reaction mixture is stirred for 20 min at 100° C. and at 300 W in the microwave. The reaction mixture is combined with 10 mL water, extracted with 10 mL EtOAc and the organic phase is washed with water and dried over Na2SO4. After the desiccant and solvent have been eliminated the residue is purified by chromatography (silica gel, EtOAc/MeOH/NH3 90:10:1).

Workup

extractionextracted with 10 mL EtOAc
washthe organic phase is washed with water
dry with materialdried over Na2SO4
customis purified by chromatography (silica gel, EtOAc/MeOH/NH3 90:10:1)

Sources & evidence

ORD record: ord-05ee01884f09455dbae81d294c7d2f37
Source dataset: uspto-grants-2013_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08618132B2

Reaction notes

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