Current Organic Chemistry - Volume 15, Issue 8, 2011

Synthetic carbon allotropes have received a lot of attention from the scientific community during the last 25 years. In addition to the more explored fullerenes and carbon nanotubes, other carbon nanostructures such as graphenes, nano-onions, nanohorns and endohedral structures have attracted great interest. Concerning the chemistry aspects of carbon-based nanostructures as well as their potential applications in nan Read More

This chapter reviews some of the strategies that have been used to synthesize single walled carbon nanotubes having covalently bonded photoresponsive chromophores. In the first part, the synthetic route is discussed as well as the different characterization techniques and how the information gained by each of them has to be combined to have a more detailed information on the material. Emphasis is made on com Read More

Microwaves have proven to be a powerful ally in any synthetic effort, shortening reaction times considerably and in some cases facilitating the reaction by offering higher yields or fewer byproducts. Since the mid ‘90s microwave-assisted synthesis has found its way into carbon nanostructures, offering significant advantages towards their functionalization. In this review, an overview of the latest trends in microw Read More

Graphene is a new and hot research topic due to properties previously not observed on the nanoscale. These properties make graphene a promising candidate for new devices. However, graphene is not soluble, and this property limits its processability. Therefore, chemical functionalization is needed. This short review summarizes the covalent chemical reactions that have been performed on individual grap Read More

Carbon nanotubes (CNTs) display unique structural, chemical and physical properties which make them promising materials for electronic and sensing applications, solar energy conversion, for the realization of composites and in life science. For many of these applications, nanotube functionalization needs to be controlled. So there is a real need for original chemical reactions which allow the modification of carbon na Read More

This review deals with recent progress on the development of composite materials based on cojugated polymers (CPs) and carbon nanotubes (CNTs), both from fundamental and applied point of view. In the first part of the manuscript, we present the different types of composites, the new protocols used in their synthesis as well as their vibrational properties reported in the last five years. A brief review of the contribution of Read More

Endohedral fullerenes are remarkable molecules that offer a unique paradigm in the molecular world: the trapping of atom(s) or clusters in a 3-dimensional, almost perfectly symmetrical structure. The electron deficient nature of the fullerene surface makes it amenable to a range of chemical reactions. Hence the fullerene can obtain functionality and become a building block of larger molecular structures. Careful eng Read More

The HPLC enantioseparation of eight racemic atropisomeric biphenyls on commercially available polymeric Chiralcel OD-H, Lux Cellulose-1, Lux Cellulose-2, Chiralcel OJ, Lux Amylose-2 and Chiralpak OT(+) and on the brush-type Whelk-O1 columns, both in normal-phase mode and in polar organic solvent mode, has been investigated. The attempts to enantioseparate the selected biphenyls on Whelk-O1 were unsuccessful. Read More

The reduction of 7-gem-dihalo-3-oxo-2-azabicyclo[4.1.0]heptanes with metallic zinc yielded stereoselective synthesis of novel heterocyclic endo-7-halo-3-oxo-2-azabicyclo[4.1.0]heptanes in good to high yields without any evidence for the formation of corresponding exo-isomers. The prepared heterocyclic compounds were characterized by various techniques and their stereochemistry was established on the basis of the values Read More

Task specific ionic liquids (TSILs) have received increased attention over the last few years as it is possible to form any specific ionic liquid composition depending upon user's need of the desired physical, chemical and biological properties. The present review gives an update of recent developments in the field of TSILs with emphasis on their applications in organic synthesis.