Current Organic Chemistry - Volume 21, Issue 28, 2017

Polyhedral oligomeric silsesquioxanes (POSS) with a rigid inorganic Si-O-Si core and flexible and reactive and/or inert organic coronae have attracted much attention. Their unique structures, in addition to their physical properties, e.g. low dielectric constant or high thermal stability, are especially interesting. The well-defined organization of silsesquioxanes is important due to their possible use as precursors and compone Read More

Background: Cyclic oligomeric silsesquioxanes (COSSs) composed of an inorganic Si-O-Si cycle with different silicon atom number from 3 to 12 and organic substituent groups are the promising precursors for organic-inorganic hybrids. COSSs includes two categories: metallic cyclic oligomeric silsesquioxanes (mCOSSs) and macrocyclic oligomeric silsesquioxanes (MOSSs). Since pioneer works were done by Russian scientists, in Read More

Background: Polyhedral oligomeric silsesquioxanes are one subclass of silsesquioxanes characterized by a cage-like nanostructure. They are one of the most popular organic and inorganic hybrid molecules. As one of derivatives of polyhedral oligomeric silsesquioxanes, metal-containing silsesquioxane is a new type of organometallic compound which is becoming attractive. Its properities may be affected deeply due to th Read More

Background: Polyhedral oligomeric silsesquioxane (POSS)-based amphiphiles can be divided into two types: traditional and shape amphiphiles, which are often composed of hydrophobic cage-like POSS moiety and hydrophilic/hydrophobic linear polymer segment, mainly exhibiting tadpole-, dumbbell- and starshaped structures. Objective: The aim of this review will give an overall understanding of POSS-based amphiphiles in Read More

Contamination by aflatoxins affects food; especially cereal grains are affected by aflatoxin AfB1, while AfM1 affects milk. Many efforts have been addressed to face the problem. In a recent study, we have experimentally showed that the biopolymer chitosan is capable to adsorb the AfB1; however, more sensing and capturing studies are required. In this work, the aflatoxins mentioned above and their interaction with chitos Read More

The chemoselective catalytic reduction of nitro compounds represents the most important and prevalent process in manufacturing functionalized anilines. Consequently, the development of selective catalysts for the reduction of nitro compounds in the presence of other reducible groups is a major crucial challenge. Herein, a novel, simple, and metal-free, S8 or CS2 mediated reduction of nitroarenes is used to provide the corr Read More