Sulfurierungen XIII. Über die Piria-Reaktion der 1- und 2-Nitronaphthaline

Vrba, Z.; Allan, Z. J.

doi:10.1135/cccc19684426

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2010

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“…Sulfamylation of benzene has also been reported by using antimony pentafluoride (SbFs).548 Re-R1R2NSO,CI aici3 r1r2nso2ci-aici. R2 = Et r1r2nso2c6h5 (113) action of sulfamyl halides with Grignard reagents was carried out by Maslii and Petrov549 in an attempt to develop a synthetic route to N,N-disubstituted sulfonamides. However, the products isolated were diethylamine and n-butyl chloride.…”

Section: Physical Studiesmentioning

confidence: 99%

Sulfamic acid and its N-substituted derivatives

Benson¹,

Spillane²

1980

Chem. Rev.

115

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Section: Physical Studiesmentioning

confidence: 99%

Sulfamic acid and its N-substituted derivatives

Benson¹,

Spillane²

1980

Chem. Rev.

115

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Piria Reaction

2010

Comprehensive Organic Name Reactions and Reagents

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This reaction is a two‐step preparation of aromatic amines and amino sulfonic acids by the reduction of aromatic nitro compounds with bisulfite followed by hydrolysis in mineral acid and is generally known as the Piria reaction. All mechanistic features of the reaction have been presented and it has been found that in 4‐nitrophenol, the sulfonic group enters the meta ‐position of the nitro group. In addition, it has been found that sodium sulfite and the partially neutralized NaHSO 3 are very effective in this reaction. This reaction has been applied for the preparation of aromatic amines.

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