Alkynylsilanes – a missing piece of different silylation agents, can serve as valuable substrates in the O‐silylation through a dealkynative coupling with alcohols or silanols. The described approach displays a whole array of advantages in terms of green chemistry and is a promising alternative to existing methodologies.
An investigation of the influence of R on the abilities of the polar monomers CH2CH(CH2)8OR (R = Me, PhCH2, Ph3C, Me3Si, Ph3Si) to participate in O- rather than η2-coordination to metallocene alkene polymerization catalysts; an unanticipated role for ether oxygen coordination in promoting polymerization
作者:Goran Stojcevic、Michael C. Baird
DOI:10.1039/b908726e
日期:——
Copolymerization of ethylene and propylene with polar monomers of the types CH(2)=CH(CH(2))(n)OH (n = 1-12) in order to introduce polar functionality into the resulting polymers is possible in principle if the hydroxyl groups of the polar monomers are masked such that they cannot coordinate to Lewis acidic catalyst sites and prevent eta(2)-alkene coordination. Although the use of hydrolysable ethers