Ring-opening reactions of ethyl- and vinyloxirane on HZSM-5 and CuZSM-5 catalysts

Cu boosting the collaborative effect of Ni and H+ in alloyed NiCu/saponite catalysts for hydrogenolysis of glycidol

“…Metal and acid sites promote the formation of 1,3-PD, therefore, we foresee that an intimate between both active sites will be crucial. The acid catalyzed isomerization reaction products, reported by other authors on differently substituted oxiranes, 27,28 were not detected. This might be because acid catalyzed isomerization reaction products of glycidol, the bifunctional 3-hydroxypropionaldehyde or acetol, were unstable under our reaction conditions and could undergo hydrogenation, condensation or oligomerization reactions.…”

“…10,12,[18][19][20][21][22][23] Glycidol could be an alternative to glycerol for propanediol production since is a highly reactive molecule that could be readily obtained in one step from the reaction of glycerol and dimethyl carbonate 24,25 or from epichlorohydrin industry wastes. 26 Epoxides can undergo ring opening reactions in the presence of acid solids, [27][28][29] and supported metal catalysts. [30][31][32] Isomerization and hydrogenolysis of epoxides to aldehydes, ketones or alcohols using different supported metal catalysts has been previously described.…”