14019-65-9Relevant articles and documents
One-electron Oxidation of 2,2-dimethyl-2-silaindane by Potassium 12-Tungstocobaltate(III). Lack of Evidence for Stereoelectronic Effects on the Cleavage of a β-Carbon-Silicon Bond in an Aromatic Cation Radical
Baciocchi, Enrico,Bernini, Roberta,Lanzalunga, Osvaldo
, p. 1691 - 1692 (2007/10/02)
The one electron transfer oxidation of 2,2-dimethyl-2-silaindane by K5CoIIIW12O40 leads, in a slow step, to a radical cation which then undergoes fast C-Si bond cleavage, thus indicating that the rate of this cleavage is not significantly affected by the orientation of the C-Si bond with respect to the aromatic system.
Formation of Cyclic Carbonates in the Reaction of 1,2-Ditertiary Diols with Acetic Anhydride and 4-(Dimethylamino)pyridine
Bhushan, Vidya,Chakraborty, Thushar K.,Chandrasekaran, Srinivasan
, p. 3974 - 3978 (2007/10/02)
The reaction of 1,2-ditertiary diol 1a with acetic anhydride and 4-(dimethylamino)pyridine (DMAP) at high concentrations in the absence of solvent has been found to give rise to cyclic carbonate 2a.The reaction has been generalized with a few other 1,2-ditertiary diols (1b-d).Based on the different products isolated in these reactions, apart from a small amount of normal acetylation products, various mechanisms have been proposed and examined.Tertiary alcohols have been found to give monoacetoacetates in addition to the acetates, under the same conditions.Detailedinvestigations have prompted us to suggest the intermediacy of ketene and diketene in these reactions.
