64646-79-3Relevant academic research and scientific papers
Regiochemical control of the ring opening of 1,2-epoxides by means of chelating processes. Part 15: Regioselectivity of the opening reactions with MeOH of remote O-substituted regio- and diastereoisomeric pyranosidic epoxides under condensed- and gas-phase operating conditions
Crotti, Paolo,Renzi, Gabriele,Favero, Lucilla,Roselli, Graziella,Di Bussolo, Valeria,Caselli, Micaela
, p. 1453 - 1467 (2007/10/03)
The regiochemical behavior of pairs of regio- and diastereoisomeric epoxides derived from the 3,4,5,6-tetrahydro-2H-pyrane system, bearing an acetal group as the remote functionality, was determined in the acid methanolysis in the condensed phase (cd-phase) and in the reaction with MeOH in the gas-phase using a gaseous acid (D3+), as the promoting agent. With only one exception, the results obtained in the opening process of these epoxides indicate the incursion in the gas-phase of D+-mediated chelated bidentate species able to modify the regiochemical result found in the methanolysis in the cd-phase.
