Triethylamine → 1-(2,3-Dihydrobenzo[1,4]dioxin-2-ylmethyl)-3-(3-fluorophenyl)piperidine

HRID 2407232Notes

Reaction equation

Br[CH2:2][CH:3]1[O:8][C:7]2[CH:9]=[CH:10][CH:11]=[CH:12][C:6]=2[O:5][CH2:4]1.[F:13][C:14]1[CH:15]=[C:16]([CH:20]2[CH2:25][CH2:24][CH2:23][NH:22][CH2:21]2)[CH:17]=[CH:18][CH:19]=1.C(N(CC)CC)C>C(#N)C>[O:8]1[C:7]2[CH:9]=[CH:10][CH:11]=[CH:12][C:6]=2[O:5][CH2:4][CH:3]1[CH2:2][N:22]1[CH2:23][CH2:24][CH2:25][CH:20]([C:16]2[CH:17]=[CH:18][CH:19]=[C:14]([F:13])[CH:15]=2)[CH2:21]1

Participants

Conditions

Temperature: 140 °C

Procedure

A mixture of 2-bromomethyl-2,3-dihydrobenzo[1,4]dioxine (340 mg, 0.48 mmol), 3-(3-fluorophenyl)piperidine (323 mg, 2.50 mmol) and triethylamine (455 mg, 4.50 mmol) in acetonitrile (3 mL) was heated in a microwave reactor at 140° C. for 60 min. The mixture was absorbed on silica and purified by flash chromatography using a gradient of heptane and EtOAc as eluent to give 213 mg of the title compound.

Workup

customThe mixture was absorbed on silica
custompurified by flash chromatography

Sources & evidence

ORD record: ord-9ea94c5f1e954020bb3f9a698c8312ac
Source dataset: uspto-grants-2014_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08809536B2

Reaction notes

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