<p>1. Sulfur monoxide: generation, trapping, and synthetic applications</p> <p>Connor Prior, Richard S. Grainger</p> <p>2. Syntheses of linear azapentacenes </p> <p>Georgia A. Zissimou, Panayiotis A. Koutentis</p> <p>3. Three-membered ring systems</p> <p>Jonathon S. Russel</p> <p>4. Four-membered ring systems</p> <p>Josefa Anaya, Ramón M. Sánchez</p> <p>5.1 Five-membered ring systems: thiophenes and selenium/tellurium analogs and benzo analogs</p> <p>John A. Joule</p> <p>5.2 Five-membered ring systems: pyrroles and benzo analogs</p> <p>Justin M. Lopchuk</p> <p>5.3 Five-membered ring systems: furans and benzofurans</p> <p>Halina Kwiecień</p> <p>5.4 Five-membered ring systems: with more than one N atom</p> <p>Larry Yet</p> <p>5.5 Five-membered ring systems: with N and S atom</p> <p>Narendra B. Ambhaikar, Shriharsha Uppaluri</p> <p>5.6 Five-membered ring systems: with O and S (Se, Te) atoms</p> <p>R. Alan Aitken, Fiona M. Fotherby</p> <p>5.7 Five-membered ring systems with O and N atoms</p> <p>Franca M. Cordero, Luisa Lascialfari, Fabrizio Machetti</p> <p>6.1 Six-membered ring systems: pyridines and benzo derivatives</p> <p>Jeanese C. Badenock</p> <p>6.2 Six-membered ring systems: diazines and benzo derivatives</p> <p>K. Alison Rinderspacher</p> <p>6.3 Triazines, tetrazines, and fused ring polyaza systems</p> <p>R. Alan Aitken, Fiona M. Fotherby</p> <p>6.4 Six-membered ring systems: with O and/or S atoms</p> <p>Clementina M.M. Santos, Artur M.S. Silva</p> <p>7 Seven-membered rings</p> <p>Alex C. Bissember, Steven M. Wales, Bill C. Hawkins, Jack L.-Y. Chen, Wade F. Petersen, Andrew J. Tague, Cassandra L. Fleming, Andrew P. Cording, Ashlyn D. Bhana, Mark D. Johnstone, James P. Shephard</p> <p>8 Eight-membered and larger rings</p> <p>Charles N. Moorefield, George R. Newkome</p>