The Science of Synthesis Editorial Board,together with the volume editors and authors, is constantly reviewing the whole field of sy nthetic organic chemistry as presented in Science of Synthesis and evaluating significant developments in synthetic methodology. Fou r 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 B enzo- and Dibenzo-Fused Derivatives, 1,2-Dithiins, Seven-Membered Hetarenes with One Heteroatom, Oxepins, Benzoxepins, Azepines, Cyc lopentazepines, and Phosphorus Analogues, Three Carbon-Heteroatom Bonds: Nitriles, Isocyanides, and Derivatives, Heteroatom Analogue s of Aldehydes and Ketones. // The content of this e-book was originally published in April 2012.