calixarenes has been researched along with pyrrolidine* in 1 studies
1 other study(ies) available for calixarenes and pyrrolidine
Article | Year |
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Catalytic hydrogenation of meso-octamethylporphyrinogen (calix[4]pyrrole).
Hydrogenation of meso-octamethylporphyrinogen (calix[4]pyrrole) with a number of heterogeneous catalysts under different experimental conditions has been investigated. GC-MS analyses of the reaction mixtures showed the formation of one to four products in low to moderate yields: three of them were diastereoisomers of the product derived from half-hydrogenation of the substrate, and displayed alternating pyrrolidine and pyrrole rings, while the fourth was the all-cis saturated product. An acidic medium was necessary to achieve hydrogenation. However, the use of too strongly acidic solvents or additives was detrimental to the stability of the substrate and/or the catalyst. Topics: Calixarenes; Catalysis; Hydrogenation; Models, Molecular; Molecular Structure; Porphyrins; Pyrroles; Pyrrolidines; Solubility; Solvents; Stereoisomerism | 2010 |