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...

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...

[reactions: see text] One-pot total syntheses of the quinazolinobenzodiazepine alkaloids sclerotigenin (1), (+/-)-circumdatin F (2), and (+/-)-asperlicin C (3) via novel microwave-assisted domino reactions were achieved in 55%, 32%, and 20% yields, respectively, from commercially available starting materials. A two-step total synthesis of (+/-)-benzomalvin A (4) was accomplished with an overall...

zns  nanoparticles  were  synthesized  via  a  simple  surfactant  free microwave  route.  in  this  synthesis, thioacetamide  was  used  as sulfur  source.  the effects  of different  parameters  such  as  type of zinc precursor,  time  and  power  of  irradiation  on  the  morphology and  particle  size  of  the  products  have been  investigated.  the nanostructures  were  characterized  by ...

microwave irradiation is used in the synthesis of four tricyclic chromanones 11-14. the chromanone 14 and 12 are selectively formed thermally and under microwave in the presence of polyphosphoric acid (ppa) from the same dicarboxylic acid 9, respectively. the crystal structures of the two diacids are also reported. the corresponding ortho and meta isomers of diacids crystallize in the space gro...