4-Chlorophenol → 4-((4-Chlorophenoxy)methyl)-1-(2-cyclopropyl-1-methyl-1H-benzimidazol-6-yl)pyridin-2(1H)-one

HRID 2203072Notes

Reaction equation

[CH:1]1([C:4]2[N:8]([CH3:9])[C:7]3[CH:10]=[C:11]([N:14]4[CH:19]=[CH:18][C:17]([CH2:20][OH:21])=[CH:16][C:15]4=[O:22])[CH:12]=[CH:13][C:6]=3[N:5]=2)[CH2:3][CH2:2]1.[Cl:23][C:24]1[CH:29]=[CH:28][C:27](O)=[CH:26][CH:25]=1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1COCC1>[Cl:23][C:24]1[CH:29]=[CH:28][C:27]([O:21][CH2:20][C:17]2[CH:18]=[CH:19][N:14]([C:11]3[CH:12]=[CH:13][C:6]4[N:5]=[C:4]([CH:1]5[CH2:2][CH2:3]5)[N:8]([CH3:9])[C:7]=4[CH:10]=3)[C:15](=[O:22])[CH:16]=2)=[CH:26][CH:25]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of 1-(2-cyclopropyl-1-methyl-1H-benzimidazol-6-yl)-4-(hydroxymethyl)pyridin-2(1H)-one (150 mg), 4-chlorophenol (130 mg) and tributylphosphine (514 mg) in THF (15 ml) was added 1,1′-(azodicarbonyl)dipiperidine (641 mg), and the mixture was stirred at 60° C. for 4 h. The mixture was concentrated in vacuo, and diluted with DCM. The mixture was washed with water and brine successively, dried over Na2SO4, concentrated in vacuo and purified by column chromatography (MeOH/DCM) to afford the title compound (45 mg) as a white solid.

Workup

concentrationThe mixture was concentrated in vacuo
additiondiluted with DCM
washThe mixture was washed with water and brine successively
dry with materialdried over Na2SO4
concentrationconcentrated in vacuo
custompurified by column chromatography (MeOH/DCM)

Sources & evidence

ORD record: ord-143dd6c298e244f28703997bdaad0651
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09365540B2

Reaction notes

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