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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 357843Generated: October 31, 2026

N-bromobutanimide → 3-bromo-5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-one

https://huagongshe.com/reaction/357843

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
Reactant5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-oneHCID 54682301—
Product3-bromo-5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-oneHCID 54721639—

Reaction Steps

The title compound was prepared as described in General Method 3 using 2.0 mmol of 5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-one (prepared in Example X) and 2.0 mmol of NBS. 1H NMR (DMSO-d6) δ 2.16-2.58 (m, 4 H), 3.30 (m, 2 H), 7.04-7.60 (m, 10 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05840751
Source datasetuspto-grants-1998_11
ORD IDord-9b5afa04bb27418e938b61603886ed60
Source noteuspto-grants-1998_11