01638nas a2200325   4500008004100000022001400041245011100055210006900166260008600235300001800321490000700339520053100346653001100877653001200888653002200900653001500922653000900937653001200946653000900958653001500967100002700982700002501009700002401034700002601058700002401084700002401108700002801132700002301160856012901183       2011                        eng d  a0039-791100aOne-pot synthesis of 2,4,5-trisubstituted imidazoles using MoO3/SiO2, an efficient and recyclable catalyst0 aOnepot synthesis of 245trisubstituted imidazoles using MoO3SiO2   a325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcJAN  aPII 9329965160 v413 a<p>[image omitted] A simple one-pot synthesis has been developed for the synthesis of 2,4,5-trisubstituted imidazoles using an efficient and recyclable MoO3/SiO2 solid acid catalyst by condensation of benzil or benzoin, benzaldehyde, and ammonium acetate in acetonitrile as a solvent. Using this solid catalyst, the reactions could be carried out under mild reaction conditions with very good yield of imidazoles, up to 95%. This catalyst could be recycled very easily, which makes this methodology environmentally benign.</p>10abenzil10abenzoin10acyclocondensation10aimidazoles10aMoO310aOne-pot10aSiO210asolid acid1 aBhosale, Sidhanath, V.1 aKalyankar, Mohan, B.1 aNalage, Santosh, V.1 aBhosale, Dattatry, S.1 aPandhare, Swati, L.1 aKotbagi, Trupti, V.1 aUmbarkar, Shubhangi, B.1 aDongare, Mohan, K.  uhttps://library.ncl.res.in/content/one-pot-synthesis-245-trisubstituted-imidazoles-using-moo3sio2-efficient-and-recyclable-002150nas a2200337   4500008004100000022001400041245009600055210006900151260007700220300001400297490000600311520104700317653001101364653002801375653001501403653002001418653001301438100001901451700001501470700001801485700001801503700002101521700001601542700002001558700002301578700002801601700001601629700001401645700002401659856012901683       2012                        eng d  a1867-388000aOne-pot sol-gel preparation for efficient cobalt-molybdenum-titania hydrotreating catalysts0 aOnepot solgel preparation for efficient cobaltmolybdenumtitania   aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcDEC  a2112-21200 v43 a<p>Titania-based hydrodesulfurization catalysts were prepared by using a one-pot solgel method with the titanium peroxo complex as titanium precursor and molybdenum and cobalt precursors dissolved in the aqueous hydrogen peroxide solution used during synthesis. Catalysts with MoO3 loadings varying from 5 to 40 wt?% and a Co/Mo atomic ratio of 0.5 were prepared. Solids with molybdenum loadings below 20 wt?% MoO3 demonstrated poor hydrodesulfurization activity for the model compound thiophene. This was attributed to the presence of a large amount of embedded cobalt and molybdenum species in the titania matrix. A significant increase in the catalytic activity was observed for solids containing 20 and 25 wt?% of MoO3 on which active species appeared to be accessible on the titania surface. Furthermore, the highest conversion obtained on these solgel solids was superior to the highest conversion obtained on reference catalysts prepared through the impregnation of ammonium heptamolybdate and cobalt nitrate on commercial titania.</p>10acobalt10aheterogeneous catalysis10aMolybdenum10asol-gel process10atitanium1 aNguyen, D., L.1 aGillot, S.1 aSouza, D., O.1 aBlanchard, P.1 aLamonier, Carole1 aBerrier, E.1 aKotbagi, T., V.1 aDongare, Mohan, K.1 aUmbarkar, Shubhangi, B.1 aCristol, S.1 aPayen, E.1 aLancelot, Christine  uhttps://library.ncl.res.in/content/one-pot-sol-gel-preparation-efficient-cobalt-molybdenum-titania-hydrotreating-catalysts-001626nas a2200181   4500008004100000022001400041245013600055210006900191260011000260300001600370490000600386520082500392100002101217700002401238700002801262700002401290856013001314       2014                        eng d  a2050-748800aOne-pot synthesis of ultrasmall MoO3 nanoparticles supported on SiO2, TiO2, and ZrO2 nanospheres: an efficient epoxidation catalyst0 aOnepot synthesis of ultrasmall MoO3 nanoparticles supported on S  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcSEP  a19060-190660 v23 a<p>Ultrasmall molybdenum oxide (MoO3) nanoparticles supported on various (SiO2, TiO2 or ZrO2) nanospheres were synthesized in one pot using a reverse micelle method. The prepared catalysts were thoroughly characterized by various physico-chemical methods. TEM images showed uniform dispersion of MoO3 nanoparticles (1.5-4 nm) onto silica (similar to 275 nm). No separate MoO3 particles were identified from TEM for MoO3/TiO2 (similar to 10.5 nm) and MoO3/ZrO2 (similar to 6.5 nm) because AHM reacted with titanium and zirconium hydroxides to form solid solution. Among the prepared catalysts MoO3/SiO2 showed excellent catalytic activity (up to 90% conversion and 100% epoxide selectivity) for olefin epoxidation. The catalyst was successfully recycled up to five cycles without losing much activity and selectivity.</p>1 aChandra, Prakash1 aDoke, Dhananjay, S.1 aUmbarkar, Shubhangi, B.1 aBiradar, Ankush, V.  uhttps://library.ncl.res.in/content/one-pot-synthesis-ultrasmall-moo3-nanoparticles-supported-sio2-tio2-and-zro2-nanospheres-0