Ketones are an important class of multi-purpose products used for the production of high value-added chemicals. Herein, a novel method for the generation of methylcyclopentenone and pyridone via the modification of a magnesium aluminum spinel catalyst is proposed. In this study, zinc oxide,...

A novel recyclable deep eutectic solvent (DES) consisting of p-toluene sulfonic acid (p-TsOH) and choline chloride (ChCl) was developed for efficient woody poplar sawdust (PL) and herbaceous miscanthus (MC) conversion at mild condition. The extraction of leftover lignin on the surface of DES...

Deep eutectic solvent (DES) pretreatment of lignocellulose is an appealing and green approach for efficient lignin extraction. However, the process of lignin regeneration and DES recovery was time-consuming and labor-intensive. Herein, without any separation and purification after the DES...

Pinuskesiols A-F (1-6), six new structurally diverse abietane diterpenoids were isolated from Pinus yunnanensis resins. Their structures including absolute configurations were characterized by using spectroscopic and computational methods. All the compounds bear a carbonyl functionality at C-4 with ...

Activated carbon-entrapped microfibrilated cellulose (AC/C) films were successfully fabricated by self-assembly of cellulose microfibrils via a simple and environmentally friendly method. The structures and properties of films were characterized by scanning election microscope (SEM) as well as...

Non-destructive preservation state estimation is an essential prerequisite for the preservation and conservation of waterlogged archaeological wooden artifacts. Herein, Near Infrared (NIR) spectroscopy coupled with orthogonal partial least squares discriminant analysis (OPLS-DA) were applied to...

Primary and secondary sludges originating from kraft pulp mill effluent treatment plants represent an environmental challenge. Their final disposal mainly includes landfill or burning in the mill's biomass boiler. Seeking energy self-sufficiency and better environmental outcomes, the pulp industry...

A novel approach is proposed to solve the problem of the starch adhesive's low strength in humid environment. Herein, silicone and itaconic acid were grafted with native starch, and then the starch-based adhesive (IA-M/B-OSt) was obtained with a high wet-bond strength and environmentally friendly....

A pair of enantiomers with a rearranged dimeric phenylethanol skeleton, namely (±)-disyringol A (1a and 1b), were isolated from the stem barks of Syringa pinnatifolia. The structures were established using IR, UV, MS, and NMR data, and their absolute configurations were resolved by experimental and ...

Three new 4-phenylcoumarins, mesuaferlinns A-C (1-3), together with ten other known 4-phenylcoumarins, 4-13, were isolated from the branches and leaves of Mesua ferrea Linn. (Clusiaceae). The structure of compounds 1-3 were determined on the basis of spectroscopic methods including extensive...