IUPAC Nomenclature -Review Many aliphatic acids have historical names. IUPAC names:drop the -e from the parent alkane and add the suffix -oic acid if the compound contains a carbon-carbon double bond,change the infix -an-to -en- COOH COOH COOH CeHs Propenoic acid trans-2-Butenoic acid trans-3-Phenyl- (Acrylic acid) (Crotonic acid) propenoic acid (Cinnamic acid) IUPAC Nomenclature -Review Many aliphatic acids have historical names. IUPAC names: drop the -e from the e parent alkane and add the suffix -oicacid if the compound contains a carbon-carbon double bond, change the infix -an-to -en￾Propenoic acid (Acrylic acid) trans-3-Phenyl￾propenoic acid (Cinnamic acid) trans-2-Butenoic acid (Crotonic acid) COOH C 6 H 5 COOH COOH