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
Hazard Statements: 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.
Precautionary Statements: P210-P280g-P301+P310a-P305+P351+P338-P315-P403
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves. IF SWALLOWED: 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.