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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1184489Generated: October 31, 2026

N-ethyl-4-(piperazin-1-yl)benzamide → 4-(4-((8-Allyl-2-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)methyl)piperazin-1-yl)-N-ethylbenzamide

https://huagongshe.com/reaction/1184489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-ethyl-4-(piperazin-1-yl)benzamideHCID 28749590—
Reactant8-Allyl-2-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbaldehydeHCID 86664224—
Product4-(4-((8-Allyl-2-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)methyl)piperazin-1-yl)-N-ethylbenzamideHCID 66716931—

Reaction Steps

Using 356A and N-ethyl-4-(piperazin-1-yl)benzamide 283 in the general procedure for reductive aminations, the title compound was obtained as an off-white solid: 1H NMR (400 MHz, DMSO-d6) δ ppm 1.09 (t, J=7.20 Hz, 3H) 1.39 (d, J=6.82 Hz, 3H) 2.43-2.49 (m, 4H) 3.18-3.29 (m, 6H) 3.30-3.32 (m, 2H) 3.39 (s, 2H) 4.61 (q, J=6.82 Hz, 1H) 5.01-5.07 (m, 2H) 5.93 (m, J=16.86, 10.17, 6.57, 6.57 Hz, 1H) 6.77 (d, J=2.02 Hz, 1H) 6.73 (d, J=2.02 Hz, 1H) 6.92 (m, 2H) 7.71 (m, 2H) 8.18 (t, J=5.56 Hz, 1H) 10.60 (br. s., 1H). ESI-MS: m/z 449.4 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08669249B2
Source datasetuspto-grants-2014_03
ORD IDord-93d2c4b52ef74bada2461f364b8ba4cb
Source noteuspto-grants-2014_03