Piperic acid

• (2E, 4E ) -5 - ( 1,3- benzodioxol -5-yl ) 2,4- pentadienoic acid
• 5 - Benzo [1,3] dioxol- 5-yl - penta- 2,4- dienoic acid

Colorless needle-like crystals which change color rapidly yellow in the air

Fixed

216 ° C

Template: Infobox chemical / molecular formula search available

Piperinic acid is a chemical compound selected from the group of carboxylic acids. Is the dioxole of diunsaturated valeric acid. The derived from the piperinic piperine is main alkaloid of black pepper ( Piper nigrum).

There are 3 other isomeric forms: Isopiperinsäure, Chavicinsäure, Isochavicinsäure. With piperidine form the acids amides (rarely also piperidides ) are counted as piperidines; Piperine is the piperinic - piperidine ( piperinic - piperidide ).

Oxidative degradation in alkaline solution arises from the piperinic piperonal used as a perfume ingredient.

Production and representation

Piperinic can be represented by an alkaline hydrolysis of piperine.

Use

Piperinic acid can be used in combination with piperidine in order to produce piperine.