Current Microwave Chemistry - Volume 8, Issue 1, 2021

Microwave-assisted Claisen rearrangement of allyloxybenzene with a hydroxyl group was conducted in the presence of metal salts. The rearrangement was promoted in the presence of an alkali metal salt, because the reaction substrate was converted into a phenoxide-type ion, which can efficiently absorb microwaves. In contrast, a Lewis acid was strongly coordinated to the ethereal oxygen, and this structure c Read More

Microwave heating technology, as a new green metallurgical method, is the core technology used in metallurgical engineering. Based on a brief overview of the principle of microwave technology heating and its application in the metallurgical industry, this paper summarizes the latest research progress and development status of the current microwave heating technology in the hydrometallurgy leaching process and th Read More

Manganese ore is an important metallurgical raw material that holds an important strategic position in the national economy of China. However, the grade of manganese ore in the country is mostly low, and the utilization efficiency of low-grade manganese ore resources is low, which seriously restricts the healthy and stable development of China’s metallurgical industry. As a new green heating method, microwave is e Read More

As a new technology for preparing zirconia materials, microwave-assisted technology has been widely concerned in recent years. In this paper, the microwave-assisted method and its application in the preparation of inorganic materials are briefly described. The research progress of the preparation of zirconia by microwave-assisted method is reviewed. Some problems existing in the research status are pointed out, and t Read More

Aims: The objective of this study was to investigate the impacts of combined microwave- convective drying on the quality of dried-pears. Color, bioactive compounds (total phenolics (TP) and antioxidant capacity (AC)) and textural (hardness) properties of convective (50 and 60 °C), microwave (100 and 200 W), and combined microwave-convective (100-50 °C, 200W-50 °C, 100 W-60 °C and 200 W-60 °C) dried pears Read More

Aim: To use the microwave radiation as the post-treatment method to tune the acidic properties of Fe/ZSM-5 catalyst. Background: ZSM-5 zeolite is a widely used standard catalyst in the methanol conversion to olefins and high-octane gasoline range hydrocarbons. However, the coke deposition and the concentration of acid sites determine its overall catalytic activity. Thus, the concentration of acid sites more precisely, the numb Read More

Aims: The study aims to synthesize thiocoumarin scaffolds clubbed with pyrimidine and 1,3,4-oxadiazole ring system under microwave irradiation and describe their pharmacological activities. Background: We report herein an efficient and simple Lewis acid-catalyzed procedure for the synthesis of novel series of thiocoumarin clubbed with pyrimidine and 1,3,4-oxadiazole motifs under microwave irradiation. The microwa Read More

Background: In recent years, 3,4-dihydro-pyrimidin-2-(1H)-ones (DHPMs) have attracted significant attention due to their diverse range of biological properties such as antibacterial, antiviral, antitumor, anti-inflammatory, calcium channel blocking activities, etc. Taking into account, in this present work, a polymer-based solid acid catalyst is employed for the microwaveassisted synthesis of DHPMs. Introduction: Multicomponent reac Read More