Sedimentation-Based Separation and Purification of Solid Industrial Waste: A Case Study of Phosphogpusym.

The continuous accumulation of solid industry waste, such as phosphogypsum, has emerged as a global environmental hazard and a significant obstacle to achieving a green and sustainable industry. To convert this industry waste to reusable resources, the development and implementation of simple and cost-efficient purification techniques is crucial. A sedimentation-based separation approach was developed to achieve this objective.

-Arylation of Amino Acid Esters via an I-Mediated Metal-Free Multicomponent Benzannulation Strategy.

Herein, we present a novel method for the -arylation of amino acid esters using α-bromoacetaldehyde acetal and acetoacetate via an I-mediated metal-free benzannulation strategy, which disclosed the first synthetic application of -arylation of amino acids using nonaromatic building blocks. The synthesized -arylated amino acid derivatives were found to possess promising selective inhibition against human hepatocellular liver carcinoma cells, human melanoma cells, and human normal liver cells, with an IC value as low as 16.79 μg·mL.