Abstract
Synthesis Explorer is an interactive tutorial system for organic chemistry that enables students to learn chemical reactions in ways previously unrealized. Accessible online through a user-friendly Web interface, Synthesis Explorer delivers a rich learning experience including dynamic generation of customized multi-step synthesis design and mechanism prediction problems; context-specific feedback; and support for inquiry-based learning through experimentation and interactive dialogue with the system. The system is founded upon a reaction expert system based on over 80 reagent models and 1500 manually-composed reaction patterns, representing the undergraduate organic chemistry curriculum. These reaction models confer the system inherent predictive powers enabling it to generate a virtually limitless number of problems and to answer common questions of reactivity, including the inference of complete arrow-pushing mechanisms. Pedagogical experiments in undergraduate classes at UC Irvine indicate that the system can improve average student examination performance by ~10%.
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