Task: Text Categorization
Input (English): Its intramolecular form is called the Dieckmann cyclization and produces either five- or six-membered rings. Its crossed form, common in the biosynthesis of fatty acids, only takes place if one its reactants has no alpha-hydrogens. In its intermolecular form, it begins with an acid-base reaction between a formation of an ester enolate by an alkoxide base. The enolate acts as a nucleophile and attacks the carbonyl carbon of another ester molecule. The resulting tetrahedral intermediate collapses to give the final product, a beta-keto-ester. FTP, name this reaction, the ester analogue of the aldol condensation.
Output (English): Science