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**2(1H)-Pyrazinone, 5,6-dihydro-1-(phenylmethyl)-, 4-oxide** (also referred to as **1-benzylpiperazin-2-one nitrone**) is a nitrone derivative that serves as a key intermediate in [3 + 2] cycloaddition reactions with alkynes and alkenes, yielding Δ4-isoxazolines and isoxazolidines, respectively. These adducts can be further transformed into 3-substituted piperazin-2-ones or 1,3-amino alcohols. The cycloaddition exhibits diastereoselectivity, predominantly forming *exo*-type products with alkenes.

183269-83-2

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183269-83-2 Usage

Synonyms

Rufinamide

Molecular weight

238.23 g/mol

Physical form

White to off-white crystalline powder

Solubility

Soluble in water

Medical use

Treatment of seizures associated with Lennox-Gastaut syndrome (a severe form of epilepsy)

Mechanism of action

Stabilizes neuronal membranes and modulates sodium channels, reducing excessive electrical activity in the brain

Administration

Typically administered orally

Common side effects

Dizziness, fatigue, nausea

Drug interactions

May interact with other medications

Safety guidance

Should be used under the guidance of a healthcare professional

Check Digit Verification of cas no

The CAS Registry Mumber 183269-83-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,2,6 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 183269-83:
(8*1)+(7*8)+(6*3)+(5*2)+(4*6)+(3*9)+(2*8)+(1*3)=162
162 % 10 = 2
So 183269-83-2 is a valid CAS Registry Number.

183269-83-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-benzyl-1-oxido-2,3-dihydropyrazin-1-ium-5-one

1.2 Other means of identification

Product number -
Other names 1-benzyl-4-oxy-5,6-dihydro-1H-pyrazin-2-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:183269-83-2 SDS

183269-83-2Downstream Products

183269-83-2Relevant academic research and scientific papers

Synthesis of a 1-benzylpiperazin-2-one nitrone and its reaction with alkynes and alkenes

Bernotas, Ronald C.,Adams, Ginette

, p. 7339 - 7342 (1996)

A novel 1-benzylpiperazin-2-one nitrone has been synthesized. It readily undergoes [3 + 2] cycloadditions with alkynes and alkenes to give Δ4-isoxazolines and isoxazolidines, respectively, which can be reductively opened to 3-substituted piperazin-2-ones and 1,3-amino alcohols.

Diastereoselectivity in the cycloaddition of 1-benzyl-2-piperazinone nitrone with alkenes

Bernotas, Ronald C.,Sing, Lily,Friedrich, Dirk

, p. 465 - 469 (2005)

The diastereoselectivity of the [2 + 3]-cycloaddition of 1-benzyl-2-piperazinone nitrone with several alkenes has been examined. exo-Type cycloadducts predominated for most substrates. Georg Thieme Verlag Stuttgart.

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