27607-80-3Relevant academic research and scientific papers
Group 4 Catalyst Compounds and Process for Use Thereof
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Paragraph 0196, (2018/09/12)
This invention relates to metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula —CH2—SiR′3 or —CH2—CR′3 and R′ is a C1 to
Activation of Carbon Dioxide by Silyl Triflate-Based Frustrated Lewis Pairs
Weicker, Sarah A.,Stephan, Douglas W.
, p. 13027 - 13034 (2015/09/07)
Silyl triflates of the form R4-nSi(OTf)n (n=1, 2; OTf=OSO3CF3) are shown to activate carbon dioxide when paired with bulky alkyl-substituted Group15 bases. Combinations of silyl triflates and 2,2,6,6-tetramethylpiperidine react with CO2 to afford silyl carbamates via a frustrated Lewis pair-type mechanism. With trialkylphosphines, the silyl triflates R3Si(OTf) reversibly bind CO2 affording [R′3P(CO2)SiR3][OTf] whereas when Ph2Si(OTf)2 is used one or two molecules of CO2 can be sequestered. The latter bis-CO2 product is favoured at low temperatures and by excess phosphine.
Zur Synthese neuartiger Triflate der 14. Gruppe
Uhlig, W.
, p. 377 - 383 (2007/10/02)
Trifluoromethanesulfonates of silicon, germanium, tin and lead are obtained by cleavage of the corresponding phenyl derivatives with CF3SO3H.Selective cleavage of the tin-carbon bond is observed in the case of silyl- and germylstannanes.Reaction of bis(trifluoromethanesulfonates) with lithiumorganic compounds leads to functional substituted triflate derivatives.
