Hydrazine hydrate (1:1) → N-(2-bromo-5-fluorobenzyl)hydrazinecarbothioamide

HRID 240277Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 240277
O.[NH2:2][NH2:3].[Br:4][C:5]1[CH:10]=[CH:9][C:8]([F:11])=[CH:7][C:6]=1[CH2:12][N:13]=[C:14]=[S:15]>O1CCOCC1>[Br:4][C:5]1[CH:10]=[CH:9][C:8]([F:11])=[CH:7][C:6]=1[CH2:12][NH:13][C:14]([NH:2][NH2:3])=[S:15]

Komponenten

4

Edukt 2

HCID 24654Hydrazine hydrate (1:1)HCID 866548501-Bromo-4-fluoro-2-(isothiocyanatomethyl)benzene

Produkt 1

HCID 86654851N-(2-bromo-5-fluorobenzyl)hydrazinecarbothioamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel2×

Versuchsvorschrift

To a solution of hydrazine hydrate (80%, 2.22 g, 35.5 mmol) in 1,4-dioxane (20 mL) at 0° C. was added a solution of 1-bromo-4-fluoro-2-(isothiocyanatomethyl)benzene (13, 3.16 g, 12.8 mmol) in 1,4-dioxane (5 mL) The mixture was stirred at RT for 2 h. Ice cold water (100 mL) was added. The precipitated solid was collected by filtration, washed with water, and dried over P2O5 overnight to provide N-(2-bromo-5-fluorobenzyl)hydrazinecarbothioamide (14). MS: m/z, 278 (100%, M+1), 280 (100%), 300 (10%, M+23), 302 (10%).

Aufarbeitung

  1. filtrationThe precipitated solid was collected by filtration
  2. washwashed with water
  3. dry with materialdried over P2O5 overnight

Quellen und Nachweise

ORD-Eintrag
ord-c046ea1fce2044a28ed02ee7935454a9
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08648073B2

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