Catalytic Oxidation of Kraft Lignin in a Trickle-Bed Continuous Reactor.

For the first time, the catalytic oxidation of Kraft lignin over a solid heterogeneous catalyst was studied in a continuous lab-scale trickle-bed reactor. This catalytic process is able to depolymerize Kraft lignin and produce phenolic compounds of interest such as vanillin. The impact of operating conditions such as temperature, residence time, contact time, catalyst loading and lignin concentration was evaluated.

A Landscape of Lignocellulosic Biopolymer Transformations into Valuable Molecules by Heterogeneous Catalysis in C'Durable Team at IRCELYON.

This review article highlights part of the research activity of the C'Durable team at IRCELYON in the field of sustainable chemistry. This review presents a landscape of the work performed on the valorization of lignocellulosic biopolymers. These studies intend to transform cellulose, hemicellulose and lignin into valuable molecules.

Progress in palladium-based catalytic systems for the sustainable synthesis of annulated heterocycles: a focus on indole backbones.

A survey highlighting the most recent palladium catalytic systems produced and their performances for progress in direct synthesis of indole backbones by heterocarbocyclization of reactive substrates is provided. The discussion is developed in relation with the principles of sustainable chemistry concerning atom and mass economy. In this respect, the general convergent character of the syntheses is of particular interest (one-pot, domino, cascade or tandem reactions), and the substrates accessibility and reactivity, together with the final waste production, are also important.

Recent advances in the synthesis of N-containing heteroaromatics via heterogeneously transition metal catalysed cross-coupling reactions.

N-containing heteroaromatics are important substructures found in numerous natural or synthetic alkaloids. The diversity of the structures encountered, as well as their biological and pharmaceutical relevance, have motivated research aimed at the development of new economical, efficient and selective synthetic strategies to access these compounds. Over more than 100 years of research, this hot topic has resulted in numerous so-called "classical synthetic methods" that have really contributed to this important area.

Direct synthesis of tricyclic 5H-pyrido[3,2,1-ij]quinolin-3-one by domino palladium catalyzed reaction.

Unexpectedly, the palladium catalyzed coupling reaction of acrolein with 8-bromoquinoline gave 5H-pyrido[3,2,1-ij]quinolin-3-one in a single step.