1-Bromo-3-chloropropane → HCID 22736084, compound

HRID 1764883Notes

Reaction equation

[NH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH2:2]1.Br[CH2:12][CH2:13][CH2:14][Cl:15].CCN(CC)CC>O1CCOCC1.CCOCC>[Cl:15][CH2:14][CH2:13][CH2:12][N:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH2:2]1

Participants

Conditions

Temperature: 70 °C

Procedure

To a solution of 1,2,3,4-tetrahydroquinoline (505 mg, 3.79 mmol) and 1-bromo-3-chloro propane (1.77 g, 11 mmol) in 1,4-dioxane (6 mL) was added Et3N (1.90 g, 19 mmol). The reaction mixture was stirred at 70° C. for 17 h, and quenched by addition of H2O (2 mL). Reaction was diluted with Et2O (100 mL) and washed with brine (100 mL), dried over MgSO4 and concentrated in vacuo. Purification by column chromatography (hexanes:EtOAc 49:1) yielded 1-(3-chloropropyl)-1,2,3,4-tetrahydroquinoline (187 mg, 24%) as a colorless oil. The title compound was isolated as a yellow oil (22 mg, 43%) according to the method of Example 286, Step C from (8aS,12aR)-6,7,8a,9,10,11,12,12a-octahydro-5H-pyrido[4,3-b][1,4]thiazepino[2,3,4-hi]indole (30 mg, 0.12 mmol) and 1-(3-chloropropyl)-1,2,3,4-tetrahydroquinoline (51 mg, 0.24 mmol). 1H NMR (CDCl3) δ1.77-2.19 (m, 10H), 2.24-2.41 (m, 2H), 2.61-2.69 (m, 1H), 2.75-2.84 (m, 3H), 2.91-3.02 (m, 1H), 3.10-3.21 (m, 2H), 3.26-3.34 (m, 5H), 3.52-3.61 (m, 1H), 3.77-3.96 (m, 1H), 6.49-6.65 (m, 3H), 6.85 (d, 1H, J=7.3 Hz), 6.92-6.96 (m, 2H), 6.99-7.05 (m, 1H) ppm.

Workup

customquenched by addition of H2O (2 mL)
customReaction
washwashed with brine (100 mL)
dry with materialdried over MgSO4
concentrationconcentrated in vacuo
customPurification by column chromatography (hexanes:EtOAc 49:1)

Sources & evidence

ORD record: ord-80585129057a47c39ea59c0ae63bda0b
Source dataset: uspto-grants-2007_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: USRE039679E1

Reaction notes

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