Please explain the Synthesis of 3-Nonenoic AcidPlease

Experiment 10. Synthesis of 3-Nonenoic AcidOHO--OHheptanalmalonic acidEt NLOHrefluxProcedure:3-nonenoic acidMix 1.04 g of malonic acid and 1.14 g of heptanal in a 25-ml round bottom flaskand then add 2 ml triethylamine. Add a boiling chip and reflux the mixture for 1 h. Cool the reaction toroom temperature and then transfer it to a separatory funnel using 10-20 mL ether. Wash the ether layerin the funnel with 10 mL ice cold 10% HCI and discard the aqueous layer. Wash the ether layer with10 mL of 5% NaOH and discard the ether layer. Return the aqueous layer to the funnel and wash it with10 mL of ether and discard the ether layer. Reacidify the aqueous layer with 10 mL of 10% HCI andextract it with 10 mL of ether. Discard the aqueous laver. Wash the ether layer with saturated NaCl, dry itover CaCz filter off the drying agent, and evaporate off the ether on the rotovap. Characterize thisproduct.