After the appearance of the green chemistry concept, which was introduced in the chemistry
vocabulary in the early 1990s, its main statements have been continuously developed and …

The multicomponent Mannich reaction is a green and classical method for the preparation of
β-aminoketones and β-aminoaldehydes (Mannich bases) and, as such, is one of the most …

Abstract A convenient C− H amination of quinoxalin‐2‐ones has been developed. This
transformation provides concise access to 3‐aminoquinoxalin‐2 (1H)‐ones with a broad …

Heterocycles represent the largest diversity of organic compounds with signifcant chemical,
biomedical, and industrial applications. They exist in numerous natural products, dyes, and …

In this work, an efficient, novel, retrievable, and magnetic heterogeneous nanocatalyst,
Fe3O4@ CPTMS@ Asp@ Ni was successfully fabricated using Fe3O4 nanoparticles as the …

An efficient and direct Cu-assisted nitrating approach to create synthetically valuable and
challenging tertiary α-nitro-α-substituted moieties has been developed using ceric …

The multicomponent reaction of 2-nitroacetophenone (or nitroacetone), acetaldehyde diethyl
acetal, β-dicarbonyl compound, and ammonium acetate in an acetic acid solution allowed …

Abstract Cerium ammonium nitrate (NH 4) 2 Ce IV (NO 3) 6 (CAN) is widely used as a
photolytic source of NO 3 radical dot radicals in acetonitrile. In spite of that, the mechanistic …

ABSTRACT N-methylmorpholine N-oxide and silver oxide (Ag2O) oxidized four component
reaction for the preparation of pyranopyrazole with different substituted pattern have been …

An efficient and rapid four component reaction of ethyl acetoacetate, hydrazine hydrate,
malononitrile and different aldehydes at environmentally benign room temperature and …