4415-90-1Relevant academic research and scientific papers
A Novel Route to Geminal Dibromocyclobutanes: Syntheses of 2-Substituted Cyclobutanone Acetals and Their Reaction with Boron Tribromide
Nordvik, Tore,Brinker, Udo H.
, p. 9394 - 9399 (2007/10/03)
Nine 2-substituted cyclobutanone acetals, in addition to the parent cyclobutanone acetal, were synthesized from their corresponding cyclobutanones and subsequently treated with boron tribromide. The substituents were either alkyl chains or a phenyl and a
Mild acetalisation of mono and dicarbonyl compounds catalysed by titanium tetrachloride. Facile synthesis of β-keto enol ethers
Clerici, Angelo,Pastori, Nadia,Porta, Ombretta
, p. 217 - 225 (2007/10/03)
The use of TiCl4, as a catalyst for the acetalisation, at room temperature, of carbonyl compounds is reported. Cyclic ketones and cyclic 1,4-diketones easily afford dimethyl acetals, but cyclic 1,3-diketones give β-keto enol ethers. Additionally, aryl ketones and acyclic ketones failed to react. β-keto aldehydes can be monoprotected either as β-keto enol ethers or β-keto dimethyl acetals depending on the reaction time and catalyst amount. Some mechanistic features are accounted for.
Photochemically initiated addition of alcohols to ketones: facile photoketalization of cycloalkanones
Malatesta, Vincenzo,Jennings, Michael,Hackett, Peter
, p. 366 - 367 (2007/10/02)
Irradiation at 300 nm of cycloalkanones in methanol gives the corresponding ketals in good yields.The results indicate that an excited state of the cycloalkanone is responsible for the facile addition of methanol to the carbonyl group.
