I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.
BTMSA is used as starting reagent in the synthesis of functionalized 4-R-1,2-bis(trimethylsilyl)benzenes. It is also used in the synthesis of (+)-brasilenyne2 and (β-diketanato)Ag(BTMSA). Bis(trimethylsilyl)acetylene is a ligand that binds to a central metal ion (e.g. Titanium) to create a coordination complex. One of its complexes, Permethyltitanocene-bis(trimethylsilyl)acetylene, is a catalyst for the head-to-tail dimerization of 1-alkynes (e.g. 3-Penten-1-yne [P227430]).
Christian Reus.; Liu NW.; Bolte M.; Lerner HW.; Wagner M. Synthesis of bromo-, boryl-, and stannyl-functionalized 1,2-bis(trimethylsilyl)benzenes via Diels-Alder or C-H activation reactions.J. Org. Chem.,2012,77(7), 3518-3523.
Denmark SE.; Yang SM. Intramolecular silicon-assisted cross-coupling: total synthesis of (+)-brasilenyne.J Am Chem Soc.,2002,124(51), 15196-15197.
Akinobu Horita.; Hayato Tsurugi.; Tetsuya Satoh.; Masahiro Miura. IRhodium-catalyzed anti selective cross-addition of bis(trimethylsilyl)acetylene to diarylacetylenes via carbon-silicon bond cleavage.Org Lett.,2008,10(9), 1751-1754.
Reacts with electrophiles via Si-stabilized carbocations ions and subsequent desilylation; see Appendix 4. Thus, Lewis acid promoted reaction with acid chlorides gives alkynyl ketones, leading to a synthesis of ɑß-enals: J. Org. Chem., 38, 2254 (1973); 57, 3203 (1992):
Addition to chiral acetals in the presence of TiCl4 leads to ɑ-hydroxy alkynes in high yield and ee: J. Am . Chem. Soc., 105, 2904 (1983); J. Chem. Soc., Perkin 1, 3301 (1991). Sulfonyl chlorides give alkynyl sulfones: Org. Synth. Coll., 8, 281 (1993), and references therein.
Precursor of lithium TMS acetylide: J. Chem. Soc., Chem. Commun., 840 (1979), and dilithioacetylide: Tetrahedron Lett., 34, 839 (1993).
해저드 설명서 (EU): H226
Flammable liquid and vapour.
주의 설명서: P210-P261
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray.