Ethanol → N-(4-(pyridin-3-yl)benzyl)biphenyl-4-carboxamide

HRID 711222Notes

Reaction equation

[N:1]1[CH:6]=[CH:5][CH:4]=[C:3](B(O)O)[CH:2]=1.Br[C:11]1[CH:32]=[CH:31][C:14]([CH2:15][NH:16][C:17]([C:19]2[CH:24]=[CH:23][C:22]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)=[CH:21][CH:20]=2)=[O:18])=[CH:13][CH:12]=1.C([O-])([O-])=O.[Na+].[Na+].C(O)C>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.C(OCC)(=O)C.C1(C)C=CC=CC=1>[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([C:11]2[CH:32]=[CH:31][C:14]([CH2:15][NH:16][C:17]([C:19]3[CH:24]=[CH:23][C:22]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)=[CH:21][CH:20]=3)=[O:18])=[CH:13][CH:12]=2)[CH:2]=1

Participants

Conditions

Temperature: 110 °C

Procedure

To a sealed tube was added pyridin-3-ylboronic acid 10-4 (25 mg, 0.21 mmol), N-(4-bromobenzyl)biphenyl-4-carboxamide 10−3 (50 mg, 0.14 mmol), Pd(PPh3)4 (16 mg, 0.014 mmol), saturated Na2CO3 (2.1 mL), ethanol (0.7 mL) and toluene (0.7 mL). The reaction was heated to 110° C. and stirred for 2 hours. After cooling to room temperature, the reaction was diluted into ethyl acetate, washed with brine. The organic phase was taken to dryness by rotary evaporation. The residue was purified by HPLC to give N-(4-(pyridin-3-yl)benzyl)biphenyl-4-carboxamide 10 as off-white solid. MS m/z 385.2 (M+1). 1H NMR 400 MHz (DMSO-d6) δ 9.18 (t, 1H), 8.89 (s, 1H), 8.57 (d, 1H), 8.08 (m, 3H), 7.81 (d, 2H), 7.75-7.70 (m, 4H), 7.52-7.42 (m, 6H), 4.57 (d, 2H).

Workup

temperatureAfter cooling to room temperature
washwashed with brine
customThe organic phase was taken to dryness by rotary evaporation
customThe residue was purified by HPLC

Sources & evidence

ORD record: ord-0ac6c6f9eb0045f995d233bd3506d829
Source dataset: uspto-grants-2015_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09181235B2

Reaction notes

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