Stuart Warren completed his PhD at Cambridge in 1963 after which he spent a year as Research Fellow at Harvard with Professor Westheimer. He has been a Lecturer at Cambridge since 1970. His research interests lie in organophosphorus chemistry and the mechanism of rearrangement reactions.

• What Do You Need to Know Before You Start? How to Use the Programme. Why Bother with Disconnections? Glossary. Introduction to Disconnections. One-Group Disconnections. Two-Group Disconnections. ``Illogical'' Two-Group Disconnections. General Review Problems. Pericyclic Reactions. Heteroatoms and Heterocyclic Compounds. Special methods for Small Rings: 3- and 4-membered Rings. General Review Problems. Strategy. Further Study. Revision Problems. Problems in Strategy. Problems with Several Published Solutions.

Stuart Warren completed his PhD at Cambridge in 1963 after which he spent a year as Research Fellow at Harvard with Professor Westheimer. He has been a Lecturer at Cambridge since 1970. His research interests lie in organophosphorus chemistry and the mechanism of rearrangement reactions.

• What Do You Need to Know Before You Start? How to Use the Programme. Why Bother with Disconnections? Glossary. Introduction to Disconnections. One-Group Disconnections. Two-Group Disconnections. ``Illogical'' Two-Group Disconnections. General Review Problems. Pericyclic Reactions. Heteroatoms and Heterocyclic Compounds. Special methods for Small Rings: 3- and 4-membered Rings. General Review Problems. Strategy. Further Study. Revision Problems. Problems in Strategy. Problems with Several Published Solutions.