Dehydrogenation of methanol to methyl formate: deuterium labeling studies |
| |
Authors: | L Domokos T Katona á Molnár |
| |
Affiliation: | (1) Departamento de Química Organica, Universidad de Córdoba, Avda. San Alberto Magno, E-14004 Cordoba, Spain;(2) Departamento de Química Orgánicay Química Física, Instituto de Ciencia de Materiales de Aragón, UniversidaddeZaragoza-CSIC, E-50009 Zaragoza, Spain |
| |
Abstract: | Different synthetic AlPO4 systems are effective yet mild acid catalysts for the heterogeneous cycloaddition reaction of cyclopentadiene with (-)-menthyl acrylate. The reaction proceeds selectively under mild conditions and in a relatively short reaction time with an almost total conversion, a high endo/exo ratio, and a reasonable asymmetric induction. When the reactions are carried out without solvent, some correlations are obtained between the number of acid sites, titrated with pyridine, and reaction yields, endo/exo and diastereofacial selectivities. The positive influence of surface area of catalysts is also determined. However, the lack of good correlations between reaction results and surface properties of the catalysts indicates the influence of some other factors. |
| |
Keywords: | AlPO4 catalysts Diels-Alder reaction asymmetric induction heterogeneous cycloaddition reaction |
本文献已被 SpringerLink 等数据库收录! |
|