Organic Reactions is a comprehensive series of volumes devoted to important synthetic reactions. For each volume, the authors are world-renowned experts with extensive hands-on experience in the field. The subjects are presented from the preparative viewpoint, and particular attention is given to limitations, interfering influences, effects of structure, and the selection of experimental techniques. Each chapter includes detailed procedures illustrating the significant modifications of the chemical reaction, as well as tables listing all the pertinent examples of the reaction. The topics discussed in Volume 56 are the Hydroformylation reaction and the Vilsmeier reactions of non-aromatic compounds. Each reaction is presented with information about the reaction conditions, products, and yields where available, and is fully referenced to the primary literature.