Triethylamine → HCID 18760207, compound

HRID 432708Notes

Reaction equation

[Cl:1][C:2]1[C:11]([N+:12]([O-:14])=[O:13])=[C:10](Cl)[C:9]2[CH2:8][CH2:7][CH2:6][CH2:5][C:4]=2[N:3]=1.C(N(CC)CC)C.[N:23]1[CH:28]=[CH:27][CH:26]=[C:25]([CH2:29][CH2:30][CH2:31][O:32][CH2:33][CH2:34][NH2:35])[CH:24]=1>CN(C)C=O>[Cl:1][C:2]1[C:11]([N+:12]([O-:14])=[O:13])=[C:10]([NH:35][CH2:34][CH2:33][O:32][CH2:31][CH2:30][CH2:29][C:25]2[CH:24]=[N:23][CH:28]=[CH:27][CH:26]=2)[C:9]2[CH2:8][CH2:7][CH2:6][CH2:5][C:4]=2[N:3]=1

Participants

Conditions

Temperature: 55 °C

Procedure

A 200 ml round bottom flask was charged with 2,4-dichloro-3-nitro-5,6,7,8-tetrahydroquinoline (10 g, 0.04 mol), triethylamine (6.1 g, 0.06 mol, 1.5 equivalents) and anhydrous N,N-dimethylformamide (100 mL). To this solution was added 2-(3-pyridin-3-ylpropoxy)ethanamine (7.3 g, 0.04 mol). The reaction mixture was heated to 55° C. and maintained overnight with stirring. The reaction was quenched by pouring into water (1000 mL). The reaction mixture was then extracted with a 1:1 solution of hexane/ethyl acetate (4×200 mL). The organics were combined, washed with brine (300 mL) and concentrated to provide 2-chloro-3-nitro-N-[2-(3-pyridin-3-ylpropoxy)ethyl]-5,6,7,8-tetrahydroquinolin-4-amine as an orange syrup (14.8 g, 94%). TLC (10% MeOH/CH2CL2, Rf=0.84).

Workup

temperaturemaintained overnight
customThe reaction was quenched
additionby pouring into water (1000 mL)
extractionThe reaction mixture was then extracted with a 1:1 solution of hexane/ethyl acetate (4×200 mL)
washwashed with brine (300 mL)
concentrationconcentrated

Sources & evidence

ORD record: ord-f982a7dff619420c9384c33a51b2aabc
Source dataset: uspto-grants-2003_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06664260B2

Reaction notes

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