Ozonolysis(Ch 8) Alkenes can be cleaved by ozone(followed by a mild reduction)to generate aldehydes and/or ketones. CH3 (1)03 (2)CH3SCH3 Phenyl Ketones and Aldehydes(Ch 17) Friedal Crafts acylation is an excellent method for the preparation of alkyl aryl ketones. 02N para-nitrobenzophenone The Gatterman-Koch reaction produces benzaldehyde systems. CO,HCI CH CuCl,AICl Chl8 Ketones and Aldehydes(landscape) Page 7 Ch18 Ketones and Aldehydes (landscape) Page 7 Ozonolysis (Ch 8) Alkenes can be cleaved by ozone (followed by a mild reduction) to generate aldehydes and/or ketones. Phenyl Ketones and Aldehydes (Ch 17) Friedal Crafts acylation is an excellent method for the preparation of alkyl aryl ketones. The Gatterman-Koch reaction produces benzaldehyde systems. CH3 (1) O3 (2) CH3SCH3 O O CH3 H C O Cl O2N + C O O2N para-nitrobenzophenone AlCl3 CH O CO, HCl CuCl, AlCl3