Look Back to the Nomenclature-IUPAC 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 Propenoic acid trans-2-Butenoic acid trans-3-Phenyl- (Acrylic acid) (Crotonic acid) propenoic acid (Cinnamic acid)Look Back to the Nomenclature - IUPAC ™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￾Propenoic acid (Acrylic acid) trans-3-Phenyl￾propenoic acid (Cinnamic acid) trans-2-Butenoic acid (Crotonic acid) CO O H C 6 H 5 CO O H CO O H