19108-51-1Relevant articles and documents
A New Four-centre Reaction of Alkanol-Alkoxide Negative Ions. The Reaction of with Alkoxysilanes. An Ion Cyclotron Resonance Study
Hayes, Roger N.,Bowie, John H.,Klass, Gunter
, p. 1167 - 1174 (2007/10/02)
Alkanol-alkoxide negative ions 1O...H...OR2>(-) react with alkoxysilanes Me3SiOR3 to produce both 1O(-)> and 2O(-)> ions of trigonal bipyramidal geometry.When R1 2 and either R1 or R2 >= Pr, the four-center reaction 1O...H...OR2>(-) + Me3SiOR3 -> 2O...H...OR3>(-) + Me3SiOR1 is observed.Addition of 1O...H...OR2>(-) in the reverse direction is not detected.Analogous reactions do not occur between Me3SiX and 1O...H...OR2>(-) when X = F, NHR, NR2, SiMe3, alkyl, allyl, propargyl, benzyl, or aryl, but 1O...H...X>(-) ions of small abundance are formed when X = HO, OCOMe, OCN, and SR.Cyclic ethers react with alkanol-alkoxyde negative ions by reaction (i;n = 2-4).
