The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2017

This is a review of papers published in the year 2017 that focus on the synthesis, reactivity, or properties of compounds containing a carbon-transition metal double or triple bond. for the year 2017 include: (1) significant advances in the design of new precursors to carbene complex intermediates that serve as safer alternatives to potentially hazardous diazo compounds, (2) continued vast employment of olefin metathesis for the synthesis of complex small molecules and polymers, including many examples of Z-selective and stereoretentive reactions, (3) design of novel transformations employing metallacumulene intermediates, (4) preparation of novel aromatic ring systems incorporating transition elements, and (5) design of reaction processes possibly invoking metal carbene complexes generated from platinum or gold complexes and alkynes.