Ethynylsilanes [Organosilicon] — contains organosilicon compounds bearing an ethynyl group attached to a trimethylsilicon, triisopropylsilicon, or boronate group, such as the trimethylsilyl-ethynyl series of aromatic and heteroaromatic compounds. This silicon-protected alkyne group makes them versatile intermediates in alkyne-based synthetic chemistry.
Ethynylsilanes in this category are widely used by synthetic organic chemists as coupling partners in Sonogashira reactions or as sources of terminal alkynes after the silyl group is removed, for example in the formation of substituted biphenylalkynes or heteroarylalkynes. Derivatives such as 4-[(trimethylsilyl)ethynyl]aniline and 4-(trimethylsilylethynyl)benzaldehyde often serve as starting materials for conjugated aromatic molecules in optoelectronic materials research.
Product examples in this collection: TCI T4381 159087-46-4 Trimethyl[(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethynyl]silane, TCI B6028 16116-78-2 (4-Bromophenylethynyl)trimethylsilane, TCI T4245 2117-12-6 4-(Trimethylsilyl)but-3-yn-1-ol, TCI D4312 18784-61-7 Diphenylbis(phenylethynyl)silane, TCI T3879 86521-05-3 2-[(Trimethylsilyl)ethynyl]pyridine, TCI D4625 2170-08-3 Dimethylbis(phenylethynyl)silane, TCI T3827 77123-57-0 4-(Trimethylsilylethynyl)benzaldehyde, TCI D5029 1379822-08-8 1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene.
Pay attention to the type of silyl group (trimethylsilyl versus triisopropylsilyl), which affects the stability and ease of alkyne group removal in the next reaction step. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.
Other parallel categories under Organosilicon [Organometallic Reagents], often used together in a single laboratory workflow:
Back to Organosilicon [Organometallic Reagents]. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — the official distributor of TCI Japan in Indonesia — to check availability and lead time directly from Japan.
