Reaktion #49924

Reaktionsgleichung

N'-t-butyl-N-(2-pyridinecarbonyl)-hydrazine

sodium hydroxide

2-nitrobenzoyl chloride

→

N'-t-butyl-N-(2-pyridinecarbonyl)-N'-(2-nitrobenzoyl)hydrazine

Ausbeute 22.6%

Lösungsmittel

Water

toluene

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   Extraktionthe mixture was extracted with ether
2. 2
   ExtraktionA second extraction
3. 3
   Trocknenthe combined organic extracts were dried over magnesium sulfate
4. 4
   SonstigeEvaporation

Vorschrift

A solution of N'-t-butyl-N-(2-pyridinecarbonyl)-hydrazine (1.0 g, 0.00518 mol) in 20 ml of toluene was treated dropwise simultaneously with a solution of sodium hydroxide (1.24 g of 50% aqueous solution) in 5 ml of water and 2-nitrobenzoyl chloride (0.96 g). The resulting mixture was stirred at 23° C. overnight. Water was added and the mixture was extracted with ether. A second extraction was performed with methylene chloride and the combined organic extracts were dried over magnesium sulfate. Evaporation afforded 0.4 g of N'-t-butyl-N-(2-pyridinecarbonyl)-N'-(2-nitrobenzoyl)hydrazine as a yellow solid: m.p. 137°-140° C.

Quelle