Synthesis and biological activities of new bis-indole derivatives via CEM Discover microwave irradiation

Ahmed H. Halawa/ Ahmed H. Bedair / Ahmed M. El-Agrody/ Essam M. Eliwa/ Marcel Frese/ Norbert Sewald Abstract Three new series of bis-indole derivatives were synthesized based on p-phenylenediamine (2–4, 5 and 6) and 4,4′-ethylenedianiline moieties (7–9) using facile and efficient condensation of three positional isomeric indole-carboxaldehyde derivatives (1a–c) with bifunctional amines upon microwave irradiation. The […]

A Rapid Synthesis of Chiral Allylic Amines via Microwave-assisted Asymmetric Alkenylation of N-Tosyl Aldimines Catalyzed by Rhodium/Chiral Diene Complexes

„A Rapid Synthesis of Chiral Allylic Amines via Microwave-assisted Asymmetric Alkenylation of N-Tosyl Aldimines Catalyzed by Rhodium/Chiral Diene Complexes“ mit der Discover Mikrowelle Abstract A method providing expeditious access to chiral allylic amines via a Rh(I)/bicyclo[2.2.1]heptadiene-catalyzed enantioselective alkenylation of N-tosyl aldimines with potassium alkenyltrifluoroborates under microwave irradiation is described. The rate of the asymmetric 1,2-addition […]

Hydrothermal Synthese in der MARS Mikrowelle

CEM MARS microwave-assisted hydrothermal synthesis and characterization of CeO2 nanowires for use as a photocatalytic material Highlights CeO2 nanowires were synthesized by microwave-assisted hydrothermal method. They were able to degrade 98% methyl orange within 100min. The promising material for waste water Treatment.  

Glaseinsätze für die Mikrowelle

Reinigung sparen und somit Geld sparen! CEM hat für die 110 ml Xpress Plus Behälter im Mikrowellen-Laborsystem MARS 6 spezielle Glaseinsätze entwickelt, die nach einmaligem Gebrauch entsorgt werden können oder aber in der Spülmaschine schnell und einfach gespült werden. Damit werden mögliche Memoryeffekte vermieden. Das ermöglicht zeit- und geldsparend die Königswasser-Aufschlüsse von Boden, Schlämmen, Sedimenten, […]