ORGANIC CHEMISTRY Chapter l More environment-friendly methods o Natural insect attractants-instead pesticide o less reactive compounds organic refrigerants and aerosol propellant--instead Freon(that destroy the earth's ozone layer) 9 Cars with more efficient combustion engines reduce the massive amount of automobile pollutants and greenhouse effect Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 1 More environment-friendly methods Natural insect attractants — instead pesticide Less reactive compounds organic refrigerants and aerosol propellant — instead Freon (that destroy the Earth’s ozone layer) Cars with more efficient combustion engines — reduce the massive amount of automobile pollutants and greenhouse effect