An efficient solventless protocol for the preparation of a wide variety of ionic liquids is described, which requires a simple exposure of admixed 1-methylimidazole and alkyl halides to microwave irradiation in open glass containers. The details of this clean process using a common household microwave oven, which exploits the newer inverter technology system for better power attenuation, are de...

Growing public concern over protecting our environment obligates chemists, including analytical chemists, to change chemical activity in such a way that it will be conducted in an environmentally friendly manner. The article provides an overview of green chemistry issues relating to sample preparation techniques, concentrating especially on the green advantages of so-called solventless sample p...

A low-cost bimetallic bifunctional 5-5 wt% FeNi/H-Beta-300 catalyst was investigated in solventless hydrodeoxygenation of lignin-derived model compounds isoeugenol or dihydroeugenol the batch and continuous mode. The characterized...

Syngenite (K2Ca(SO4)2 ⋅ H2O) presents an effective hydration activator (accelerator) for anhydrite (CaSO4) applied in construction systems. The current synthesis relies on co-precipitation of K2SO4 and CaSO4 2H2O produces large amounts waste water holding excess potassium sulfate. Therefore, this method is deemed ineffective, uneconomical environmentally unfriendly. Moreover, it crystals (ℓ ∼5-...

High-quality PbS nanocrystals were produced in multigram-scale quantities through a solventless, heterogeneous, and relatively green route. The heterogeneous nature of this reaction allows one to limit the diffusion in the system, allowing for unprecedented monodispersity and quality of the product demonstrated by a full-width at half-maximum of the photoluminescence peak (PL fwhm) as low as 52...

A gold(III)-catalyzed carbon-carbon bond formation reaction between arenes and electron-deficient alkynes or alkenes is described. Electron-rich arenes can be efficiently functionalized with the alkyne or alkene substrates. This reaction can be run with neat reactants at ambient temperature. Under the "solventless" conditions, clean product was obtained from a reaction of equal molar amounts of...

Commodity polyester plastics such as PET, PBT, and PEN are hydrogenolytically deconstructed to their starting monomeric carboxylic acids light alkanes using a solventless tandem catalytic approach with two air- moisture-stable catalysts, Hf(OTf)4 Pd/C. These selective reactions operate near the polymer melting temperature under 1 atm H2 compatible mixed plastics, reported by Yosi Kratish Tobin ...