2-(4-Aminophenyl)-N,N-dimethylacetamide → HCID 118037381, compound

HRID 1508767Notes

Reaction equation

Cl.[Cl:2][C:3]1[CH:8]=[C:7]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([Cl:15])[CH:10]=2)[N:6]=[C:5]2[CH2:16][CH2:17][CH2:18][C:4]=12.[NH2:19][C:20]1[CH:25]=[CH:24][C:23]([CH2:26][C:27]([N:29]([CH3:31])[CH3:30])=[O:28])=[CH:22][CH:21]=1>C1(C)C=CC=CC=1>[ClH:2].[Cl:15][C:11]1[CH:10]=[C:9]([C:7]2[N:6]=[C:5]3[CH2:16][CH2:17][CH2:18][C:4]3=[C:3]([NH:19][C:20]3[CH:21]=[CH:22][C:23]([CH2:26][C:27]([N:29]([CH3:30])[CH3:31])=[O:28])=[CH:24][CH:25]=3)[CH:8]=2)[CH:14]=[CH:13][CH:12]=1

Participants

Conditions

Temperature: 150 °C

Procedure

A mixture of 4-chloro-2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridine hydrochloride (0.100 g, 0.33 mmol) and 2-(4-aminophenyl)-N,N-dimethylacetamide (0.178 g, 1.0 mmol) was heated for 3 h at 150° C., then toluene added and the mixture continued heating for an additional 7 h. After this time, the mixture was purified by silica gel chromatography eluting with methylene chloride and methanol. The resulting solid was converted to the HCl salt to afford the title compound (0.048 g, 33%) as a white solid. MW=405.92. 1H NMR (DMSO-d6, 500 MHz) δ 14.2 (br s, 1H), 9.88 (s, 1H), 7.91-7.90 (m, 1H), 7.72-7.66 (m, 2H), 7.61-7.58 (m, 1H), 7.37-7.32 (m, 1H), 7.01 (s, 1H), 3.73 (s, 2H), 3.17 (t, J=7.7 Hz, 2H), 3.04 (s, 3H), 2.93 (t, J=7.2 Hz, 2H), 2.84 (s, 3H), 2.27-2.21 (m, 2H); ESI MS m/z 406 [M+H]+.

Workup

temperaturethe mixture continued heating for an additional 7 h
customAfter this time, the mixture was purified by silica gel chromatography
washeluting with methylene chloride and methanol

Sources & evidence

ORD record: ord-e5c03d8f7c224bafb0d5514852cc47fd
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09221843B2

Reaction notes

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