Sodium borohydride → 4-(4'-methylbiphenyl-2-carboxamido)-N-methyl-N-[2-(6-methoxycarbonylhexyloxy)phenyl]benzamide

HRID 323168

Reaction equation

[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([C:14]([NH:16][C:17]3[CH:43]=[CH:42][C:20]([C:21]([N:23]([CH3:41])[C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=4[O:30][CH2:31][CH2:32][CH2:33][CH2:34][CH:35]=[CH:36][C:37]([O:39][CH3:40])=[O:38])=[O:22])=[CH:19][CH:18]=3)=[O:15])=[CH:10][CH:11]=[CH:12][CH:13]=2)=[CH:4][CH:3]=1.[BH4-].[Na+]>CO.O1CCCC1.O.O.O.O.O.O.[Ni](Cl)Cl>[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([C:14]([NH:16][C:17]3[CH:43]=[CH:42][C:20]([C:21]([N:23]([CH3:41])[C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=4[O:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][C:37]([O:39][CH3:40])=[O:38])=[O:22])=[CH:19][CH:18]=3)=[O:15])=[CH:10][CH:11]=[CH:12][CH:13]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

A solution of 4-(4′-methylbiphenyl-2-carboxamido)-N-methyl-N-[2-(6-methoxycarbonyl-5-hexenyloxy)phenyl]benzamide (360 mg) and nickel chloride hexahydrate (594 mg) in methanol (15 ml) and tetrahydrofuran (15 ml) was treated at 0° C. with sodium borohydride (283 mg) and stirred at 0° C. for 4 hours. The reaction mixture was diluted with tetrahydrofuran and filtered through a bed of Celite and then concentrated. The residue was diluted with ethyl acetate and washed with water and brine. The organic layer was dried over magnesium sulfate, concentrated to give 4-(4′-methylbiphenyl-2-carboxamido)-N-methyl-N-[2-(6-methoxycarbonylhexyloxy)phenyl]benzamide (340 mg).

Workup

filtrationfiltered through a bed of Celite
concentrationconcentrated
additionThe residue was diluted with ethyl acetate
washwashed with water and brine
dry with materialThe organic layer was dried over magnesium sulfate
concentrationconcentrated

Sources & evidence

ORD record: ord-b3afac3601d14e4897952eb973a83c22
Source dataset: uspto-grants-2001_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06211242B1

Linked notes

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