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2-Alkynes are metallated almost exclusively at the terminal position by t-BuLi in ether, in the presence of TMEDA. Subsequent reaction, e.g. with TMS chloride, gives propargylic silanes: Synthesis, 111 (1984)./n
Gefahrenhinweise (EU): H225-H315-H319-H335-H304
Highly flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May be fatal if swallowed and enters airways.
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves. IF SWALLOWED: Immediately call a POISON CENTER/doctor IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Get immediate medical advice/attention. Store in a well-ventilated place.