A friendly benign, green, rapid and facile strategy for synthesis a series of arylquinoxalines was achieved by condensation of aromatic 1,2-diamines with arylglyoxals under clay-catalyzed as an inexpensive and eco-friendly catalyst using grindstone chemistry. Significant decreases in reaction times and high yields have been observed by this green chemistry approach in comparison with previously...

Organic chemistry in present day Japan, which has developed from early interest in natural products chemistry, now includes total synthesis, physical organic chemistry, synthetic methods, and organometallic chemistry. In this article, the current state of Japanese organic chemistry is briefly reviewed and a representative aspect of today's organic chemistry-exploration of new synthetic methodol...

The new journal Molecules publishes peer-reviewed research papers on synthetic chemistry and natural product chemistry. The rapid publication schedule requires that authors make sure their submitted or revised manuscripts are in the final form. In order to comply with this requirement, I considered treating the Corrigendum column as an advertisement and charging all authors who contribute to it...

A new modality for chemical synthesis on a drop scale which employs a piezoelectric chip as the reactor and surface acoustic waves (SAWs) as the source of energy (and consequent heating) is described.

silica gel has been used for synthesis of biscoumarin derivatives starting from 4-hydroxycoumarin and aryl aldehydes. the reaction conditions are completely in agreement with green chemistry principles including sing water as media and a recyclable and safe catalyst. this method is also simple and inexpensive and leads to high yield of products in short reaction times.

Several samples of mesoporous silica were prepared via sol-gel chemistry in the presence of CTAB as template with variation of stirring intensity and aging time, ratios of CTAB/SiO2 and NH4OH/H2O in synthesis mixture. Effects of aging temperature, hydrothermal treatment and ter-Butanol addition to the synthesis mixture on the textural properties of obtained samples were also studied. Results of...

1,4-Dihydropyridines (1,4-DHPs) are recognized as one of the most versatile pharmacophores present as central core in many pharmaceuticals. Low yield and harsh reaction conditions prompted the researchers for the development of new environmental- friendly methods for the synthesis of 1,4-DHPs. This review explored the development of various green chemistry approaches using new catalysts develop...

1,4-Dihydropyridines (1,4-DHPs) are recognized as one of the most versatile pharmacophores present as central core in many pharmaceuticals. Low yield and harsh reaction conditions prompted the researchers for the development of new environmental- friendly methods for the synthesis of 1,4-DHPs. This review explored the development of various green chemistry approaches using new catalysts develop...

Recent advances regarding the synthetic chemistry of fluorinated aziridines and azetidines are presented in this chapter. These small heterocycles are of high importance both as building blocks for more complex structures and as active parts of medicinal chemistry-oriented compounds. Methods are presented according to the precursors used for the synthesis.