This course surveys the reactions of organic compounds with an emphasis on mechanisms and a structure-based approach to understanding reactivity. Concepts and models are developed to build intuition about the reactivity of organic compounds. These concepts will prepare students for a mechanistic-based approach to learning organic reactivity. Emphasis will also be placed on developing problem-solving skills unique to organic chemistry. This course, orgchem1b, together with its prerequisite, orgchem1a are equivalent to a first-semester organic chemistry course; these courses and the subsequent courses (orgchem2a and orgchem2b) are especially suited for students in agricultural, nutritional and biological sciences, as well as premedical, predental, and preveterinary programs.