The European Space Agency SMOS (Soil Moisture and Ocean Salinity) mission aims at obtaining global maps of both variables from space for large scale and climatic studies. It uses an L-band microwave interferometric radiometer with aperture synthesis (MIRAS) to measure brightness temperature (TB) emitted by the Earth surface and then compute from it the two geophysical parameters. The retrieval ...

Volatiles are extracted from aromatic plants for commercial products of premium quality and price. Why not synthesize these? Are we quite ready for such tasks? The answer is a yes and no. Some of these are amenable to chemical synthesis but others are not. Those that are, still have a cost associated that outweigh the commercial utility. We still primarily depend on conventional extraction meth...

The non-ribosomally assembled lipopeptides display a number of biological activities, including antibiotic, antitumor, immune-modulating and immune-suppressive activities. This review starts with general comments on antimicrobial peptides (AMPs), a large family of compounds that includes non-ribosomally assembled lipopeptides. Then, it brings together information on in vivo synthesis (biosynthe...

Abstract Ferrocenephosphonates make up an important class of organometallic derivatives with a wide range useful applications in organic synthesis and coordination chemistry. Here, approach to ferrocenephosphonates based on copper-promoted Hirao coupling is reported. Further functionalizations regioselective deprotolithiation both Negishi Suzuki–Miyaura cross-coupling reactions are also describ...

A rapid and efficient microwave-assisted solid-phase synthesis method is described for the preparation of the nonapeptide WDTVRISFK, using conventional Fmoc/Bu(t) orthogonal protection strategy. The synthesis protocol is based on the use of cycles of pulsed microwave irradiation with intermittent cooling of the reaction during the removal of the Fmoc protecting group and during the coupling. Th...

in a novel dual bed reactor fischer-tropsch synthesis was studied by using two diffrent cobalt catalysts. an alkali-promoted cobalt catalyst was used in the first bed of a fixed-bed reactor followed by a rutenuim promoted cobalt catalyst in the second bed. the activity, product selectivity and accelerated deactivation of the system were assessed and compared with a conventional single bed react...

Amidoalkyl-2-naphthols as synthetic intermediates play an important role in medicinal chemistry due to their remarkable biological and many pharmacological properties. Owing to the versatile biological activities, industrial and synthetic applications of these compounds, introduction of an alternative methodology is urgent in synthetic organic chemistry. Low yield and harsh reaction conditions ...

The effects of microwave irradiation (2.45 GHz, 200 W) on glycosylation promoted by a solid super acid in supercritical carbon dioxide was investigated with particular attention paid to the structure of the acceptor substrate. Because of the symmetrical structure and high diffusive property of supercritical carbon dioxide, microwave irradiation did not alter the temperature of the reaction solu...