"Progress in Heterocyclic Chemistry" (PHC) an ongoing reference work on heterocyclic chemistry is published with the active involvement of The International Society of Heterocyclic Chemistry (ISHC) whose aim is to promote heterocyclic chemistry, in particular by serving as the primary sponsoring agency for the ISHC-Congress, a large biannual meeting attracting up to a thousand participants. – Recognized as the premiere review of heterocyclic chemistry- Contributions from leading researchers in the field- Systematic survey of the important 2011 heterocyclic chemistry literature