N-Valeric anhydride

T. Urbanski and Bicrnacki (208) nitrated ethyl n-valerate with nitric acid in glacial acetic acid-acetic anhydride at 23 2 C and found that a ntixture of 2- 3- and 4-nitrovalerates was formed in the ratio 0.5 0.7 l. At 63 2 C a certain amount of l-nitrobutane was formed due to the decarboxylation of the 2-nitrovalerate. 

A mixture of 10 g isatin (68 mmol) and 18 mL valeric anhydride was heated under refluxing for 3 h. The resulting solution was then allowed to cool to room temperature, and the solid formed was collected by filtration, washed with small amounts of Et20, dried, and suspended in 30 mL H2O. Sodium hydroxide pellets (4.3 g, 110 mmol) were added, and the resulting mixture was refluxed for 3 h, cooled, and acidified with 3 N HCI. The precipitate was collected by filtration, washed with cold water, and then dried under reduced pressure to constant weight, to afford 8.0 g 2-hydroxy-3-propyl-4-quinolinecarboxylic acid as a white solid, in a yield of 60%, m.p. 266-268°C. 

Tetrahydrophthalic anhydride Triallylcyanurate Triethylamine Trimellitic anhydride Tris (hydroxymethyl) aminomethane n-Valeric acid... 

Propylene glycol phenyl ether Sorbic acid Tetrachiorophthalic anhydride Tetradecene-1 Tetrahydrophthalic anhydride N,N,N, N -Tetramethylhexanediamine N,N,N, N -Tetramethyl-1,3-propanediamine Tripropylene glycol n-Valeric acid intermediate, plastics... 

Acetic acid has been found to react with toluene to form p-methylace-tophenone (Simons et al., 49), to react with benzene to form acetophenone, and to react with phenol to form p-hydroxy acetophenone. Acetyl chloride also formed acetophenone with benzene and acetic anhydride reacted with toluene to form both p-methylacetophenone and 2,4-diace-tyltoluene. Valeric acid reacted with toluene to form p-tolyl-n-butyl ketone. Both benzoic acid and benzoyl chloride reacted with toluene to form p-tolylphenyl ketone. Acenaphthene with either benzoic acid or benzoyl chloride gave 3-benzoylacenaphthene (Fieser and Hershberg,... 

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