Current Organic Chemistry - Volume 21, Issue 12, 2017

The paper essentially summarizes and provides a comprehensive evaluation of degeneration of substrate utilization in terms of short and long term effects and biodegradability of the selected antibiotics; sulfamethoxazole, erythromycin, and tetracycline; under different conditions. This review focuses on acute and chronic tests to evaluate the inhibitory effects of the antibiotics and to control them at the source. Acute impact b Read More

Year-by-year, the amount of antibiotics for human and veterinary use increases. Their presence in both treated and untreated wastewater was highlighted in several studies, suggesting that traditional activated sludge processes are unsuitable for their efficient removal. In this review paper, we summarized the role of advanced oxidation processes (AOPs) in antibiotics removal evidencing their pros, cons and limitations. In m Read More

Many synthetic food dyes and their by-products, such as aromatic amines and phenolic compounds, occurring in industrial wastewater, are toxic to aquatic environment and, because of their carcinogenic and mutagenic nature, they result in a risk for the environment and human health when wastewater is reused or released into environment. Therefore, an effective wastewater treatment is required before effluent possible re Read More

The aim of this paper is to provide an overview on the different approaches that can be employed to drive a photo-Fenton process under mild conditions, using both heterogeneous and homogeneous iron sources. For this purpose, sections are devoted to the following strategies: a) addition of iron at low concentrations; b) using the matrix of the effluent in order to avoid deactivation of iron; c) addition of chemical auxiliaries t Read More

Being regarded as one of the critical components of water recycling programs, membrane treatment in particular reverse osmosis process has gained special interest. Although reduced cost of membrane modules caused an increase in the application, a major challenge has come up with the generation of reverse osmosis concentrate. The major concern of reverse osmosis concentrate is that it contains almost all the cons Read More

Meldrum's acid, a white solid which was prepared for the first time by Andrew Norman in 1908, is a versatile and efficient motif in chemistry. The rigid structure, low steric hindrance, in addition with high acidity of the C5–H, are some unique chemical properties of this O-containing heterocycle. Several organic compounds based on Meldrum's acid have interesting applications in biology, industry and drugs. Its special structure m Read More

Background and Objective: Continuing our studies in the field of a new rearrangement in the 2,7- naphthyridine series, the synthesis and rearrangement of mono- 2 and di-amino derivatives 3 of 2,7- naphthyridine was carried out. Taking into account the wide range of pharmacological activities of pyrazole derivatives the synthesis of some 3-amino-1-(3,5-dimethyl-1H-pyrazol-1-yl)-2,7-naphthyridines 8 and of pyrazolo[3, Read More