The Science of Synthesis Editorial Board,together with the volume editors and authors, is constantly reviewing the whole field of synthetic organic chemistry as presented in Science of Synthesis and evaluating significant developments in synthetic methodology. Four annual volumes updating content across all categories ensure that youalways have access to state-of-the-art synthetic methodology. Content of this volume: Organometallic Complexes of Titanium, Silicon Compounds, Disilenes, Lithium Compounds, 1,4-Dioxins and Benzo- and Dibenzo-Fused Derivatives, 1,2-Dithiins, Seven-Membered Hetarenes with One Heteroatom, Oxepins, Benzoxepins, Azepines, Cyclopentazepines, and Phosphorus Analogues, Three Carbon-Heteroatom Bonds: Nitriles, Isocyanides, and Derivatives, Heteroatom Analogues of Aldehydes and Ketones.