This course is a study of the structure and reactivity of organic compounds with an emphasis on mechanisms to explain reactivity. The topics covered include chemical bonding, acid-base chemistry, stereochemistry, reaction mechanisms and energy diagrams, substitution and elimination reactions, carbonyl reactions (additions, reductions, interconversions, and alpha-reactivity), and the fundamentals of some biological molecules. 3 credits lect., 1 credit lab. Prerequisite: CHEM 134.