N,N-dimethyl-3-(3-methyl-1-(1H-pyrrolo[2,3-b]pyridin-2-yl)but-1-enyl)benzenamine → N,N-dimethyl-3-(3-methyl-1-(1H-pyrrolo[2,3-b]pyridin-2-yl)butyl)benzeneamine

HRID 1515952Notes

Reaction equation

[CH3:1][N:2]([CH3:23])[C:3]1[CH:8]=[CH:7][CH:6]=[C:5]([C:9]([C:14]2[NH:22][C:17]3=[N:18][CH:19]=[CH:20][CH:21]=[C:16]3[CH:15]=2)=[CH:10][CH:11]([CH3:13])[CH3:12])[CH:4]=1.[H][H]>CO.O1CCCC1.[Pd]>[CH3:23][N:2]([CH3:1])[C:3]1[CH:8]=[CH:7][CH:6]=[C:5]([CH:9]([C:14]2[NH:22][C:17]3=[N:18][CH:19]=[CH:20][CH:21]=[C:16]3[CH:15]=2)[CH2:10][CH:11]([CH3:13])[CH3:12])[CH:4]=1

Participants

Conditions

Temperature: 25 °C

Procedure

A solution of N,N-dimethyl-3-(3-methyl-1-(1H-pyrrolo[2,3-b]pyridin-2-yl)but-1-enyl)benzenamine (1.6 g, 5.2 mmol) in methanol (40 mL) and tetrahydrofuran (40 mL) was treated with 10% palladium on carbon (320 mg). The reaction was stirred for 16 h at 25° C. under a balloon filled with hydrogen gas. At this time, the reaction mixture was filtered through a pad of celite and washed with tetrahydrofuran (2×20 mL). The filtrate was concentrated in vacuo. Silica gel column chromatography (30 g, petroleum ether/ethyl acetate 8:1) afforded N,N-dimethyl-3-(3-methyl-1-(1H-pyrrolo[2,3-b]pyridin-2-yl)butyl)benzeneamine (1.2 g, 75%) as a yellow oil: 1H NMR (300 MHz, CDCl3) δ ppm 9.54 (br. s., 1H), 8.14 (d, 1H, J=4.5 Hz), 7.78 (d, 1H, J=7.8 Hz), 7.15 (t, 1H, J=7.2 Hz), 7.03 (dd, 1H, J1=7.8 Hz, J2=4.8 Hz), 6.64-6.57 (m, 3H), 6.30 (s, 1H), 4.12 (t, 1H, J=8.1 Hz), 2.89 (s, 6H), 2.09-1.81 (m, 2H), 1.61-1.52 (m, 1H), 0.96 (s, 3H), 0.93 (s, 3H).

Workup

filtrationAt this time, the reaction mixture was filtered through a pad of celite
washwashed with tetrahydrofuran (2×20 mL)
concentrationThe filtrate was concentrated in vacuo

Sources & evidence

ORD record: ord-8f65667931c248a4a2a1589f7c6af269
Source dataset: uspto-grants-2012_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08222416B2

Reaction notes

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