One of the intermediates in the isobutene synthesis pathway is of industrial interest: this 5-carbon intermediate, prenic acid, is also known as “methyl-crotonic acid”, “dimethyl-acrylic acid” and “senecic acid” (CAS 541-47-9).
Its two chemical functions (acid and vinyl) allow it to be used in a multitude of compounds that are currently derived from petroleum and used most notably in flavors, perfumes and food additives.