Copper(II)/polyimide-linked covalent organic frameworks under solvent-free and microwave-assisted conditions have been used in an efficient one-pot protocol for the preparation of 2,4,5-trisubstituted imidazoles via benzil, aromatic aldehydes ammonium acetate. By applying microwave irradiation, three-component condensation provides safe operations, low pollution, quick access to products, easy ...

The phase-related asymmetry effect near a multibeam excitation point has been observed for a noncentrosymmetr ic organic crystal, benzil (C14Hlo02) , by using 3.5 keV X-ray synchrotron radiation. A mul t i -beam theoretical calculat ion shows good agreement with the exper imental data when mosaic spread 0108-7673/88/010017-05503.00 of the crystal is taken into account. A practical method to ext...

Rh(I) complexes of S-triazines were found very efficient towards the catalytic hydrogenation of alkenes, alkynes at normal pressure and at room temperature. Reduction of aromatic nitrocompounds, benzaldehyde and benzil were observed in appreciable amount only at high pressure and at high temperature. No diminished catalytic activity was observed even after 6-8 repeated catalytic runs. Profound ...

In the title benzil-idene Schiff base molybdenum(VI) complex, [Mo(C(15)H(12)N(2)O(3))O(2)(CH(3)OH)], the Mo(VI) ion is coordinated by two oxide O atoms and by two O atoms and one N atom of the tridentate N'-(3-meth-oxy-2-oxidobenzyl-idene)benzo-hydrazidate (L) Schiff base ligand. The methanol O atom completes the distorted octa-hedral configuration of the Mo(VI) atom. Strong O-H⋯N hydrogen bond...

A series of metal complexes of Cu(II) and Ni(II) having the general composition [M(L)X(2)] with benzil bis(thiosemicarbazone) has been prepared and characterized by element chemical analysis, molar conductance, magnetic susceptibility measurements, and spectral (electronic, IR, EPR, mass) studies. The IR spectral data suggest the involvement of sulphur and azomethane nitrogen in coordination to...