Cyclopentadiene → 826-62-0

Participants

Reaction Conditions

Reaction Steps

12.5 g of maleic anhydride and 8 g of cyclopentadiene were dissolved in 100 ml of toluene, and the mixture was heated while stirring at 120° C. for 2 hours in an autoclave. Toluene was distilled off to obtain 18 g (0.116 mol) of a 5-norbornene-2,3-dicarboxylic acid anhydride. To this was added 125 g of a 3.7 wt % sodium hydroxide aqueous solution to control the pH value to 7.1, giving a deodorant base agent 2 which was evaluated (first acid dissociation index 4.16, second acid dissociation index 6.23).

Provenance & Evidence