Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Catalysis Science & Technology called One-pot dual catalysis for the hydrogenation of heteroarenes and arenes, Author is Chatterjee, Basujit; Kalsi, Deepti; Kaithal, Akash; Bordet, Alexis; Leitner, Walter; Gunanathan, Chidambaram, which mentions a compound: 92-71-7, SMILESS is C1(C2=CC=CC=C2)=NC=C(C3=CC=CC=C3)O1, Molecular C15H11NO, Synthetic Route of C15H11NO.
A simple dinuclear monohydrido bridged ruthenium complex [{(η6-p-cymene)RuCl}2(μ-H-μ-Cl)] acted as an efficient and selective catalyst for the hydrogenation of various heteroarenes and arenes. The nature of the catalytically active species was investigated using a combination of techniques including in situ reaction monitoring, kinetic studies, quant. poisoning experiments and electron microscopy, evidencing a dual reactivity. The results suggested that the hydrogenation of heteroarenes proceeded via mol. catalysis. In particular, monitoring the reaction progress by NMR spectroscopy indicated that [{(η6-p-cymene)RuCl}2(μ-H-μ-Cl)] was transformed into monomeric ruthenium intermediates, which upon subsequent activation of dihydrogen and hydride transfer accomplish the hydrogenation of heteroarenes under homogeneous conditions. In contrast, carbocyclic aryl motifs were hydrogenated via a heterogeneous pathway, by in situ generated ruthenium nanoparticles. Remarkably, these hydrogenation reactions could be performed using mol. hydrogen under solvent-free conditions or with 1,4-dioxane, and thus gave access to a broad range of saturated heterocycles such as 1,2,3,4-tetrahydroquinoline and carbocycles such as perhydro-9-anthracenemethanol while generating no waste.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica