I. General Practical Information. II. Metallation of Acetylenes. III. Functionalization of Metallated Acetylenes with Alkyl Halides, &agr;-Haloethers, Epoxides and Alkyl Orthoformates. IV. Ethynylation and Alkynylation of Carbonyl Compounds. V. Carboxylation, Alkylation and Related Reactions. VI. Silylation, Stannylation and Phosphorylation. VII. Sulfenylations and Related Reactions. VIII. Halogenation and Cyanation. IX. Introduction of the Triple Bond by Elimination and Addition-Elimination Reactions. X. Couplings of Acetylenes Assisted by Copper and Palladium Compounds. XI. Base-Promoted Interconversions of Acetylenes. XII. Miscellaneous Preparations of Acetylenic Derivatives. Instructions for Searching. List of Selected Compounds. Type-Compound-Method Index. References.