127248-84-4Relevant academic research and scientific papers
A facile synthesis of acetals and aldehydes from allylic ethers catalyzed by cobalt compounds
Chang, Biau-Hung
, p. 31 - 34 (2007/10/02)
Octacarbonyldicobalt has been found to be a very effective catalyst for both converting allylic ethers to their corresponding acetals in the presence of an alcohol and hydrolyzing allylic ethers to aldehydes.High yields (> 95percent) were obtained in a very short reaction time under mild carbon monoxide pressure.Iron pentacarbonyl was also found to be an active catalyst but less effective than Co2(CO)8Keywords: Cobalt; Acetal; Aldehyde; Allyl; Carbonylation; Ether
Kinetische Untersuchungen zur Methanolyse von Acetalen
Claus, P.,Berndt, T.,Scherzer, K.
, p. 1205 - 1216 (2007/10/02)
It has been shown that the acid-catalyzed methanolysis of the diethylacetales RCH(OEt)2 of acetaldehyde (R=CH3), propionaldehyde (R = C2H5), butyraldehyde (R = C3H7) and caprylaldehyde (R = C7H15) at temperatures between 283 and 318 K proceeds as a consecutive reaction involving a reversible second step.The pseudo first order rate constants of the three reaction steps, their activation parameters and equilibrium constants were estimated by measuring the concentration-time-curves of starting product, intermediate and final product and using a large excess of methanol.There is a linear dependence be tween rate constants of methanolysis and concentration of the catalyst.
