02209nas a2200217   4500008004100000022001400041245009400055210006900149260007500218300001200293490000700305520136100312653003101673653003001704653003201734653002401766653003301790100002101823700001901844856012801863       2008                        eng d  a1571-101300aFunctionalized SBA-15 and its catalytic applications in selective organic transformations0 aFunctionalized SBA15 and its catalytic applications in selective  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScJUN  a114-1300 v123 a<p>Ordered, mesoporous SBA-15 functionalized with organic and inorganic moieties exhibits efficient catalytic activity in a variety of organic transformations. In this account, reviewing our own work, three-sets of surface-modified SBA-15 materials have been investigated. The first-set of materials consists of SBA-15 modified with organo-acidic (propyl thiol and propyl sulfonic acid) and basic (propyl amine and propyl adenine) moieties. The second-set of materials was prepared by grafting Mn complexes to the organo-functionalized SBA-15. The third-set composes of nanocrystalline metal oxides supported on SBA-15. All these catalysts have been characterized by structural and spectroscopic techniques. Catalytic activities of the first-set of solid materials have been investigated in acid/base-catalyzed reactions viz., ring-opening of epoxides with amines (producing beta-amino alcohols), esterification, three-component-Mannich reactions and cycloaddition of CO(2) to epoxides. The Mn complexes grafted on organofunctionalized SBA-15 are efficient catalysts for the chemo-, regio- and stereoselective aerial oxidation of monoterpenes at ambient conditions. TiO(x), VO(x), MoO(x) and WO(x) supported on SBA-15 catalyzed biomimetic oxyhalogenation of aromatic compounds. In all these reactions, the functionalized SBA-15 showed high selectivity.</p>10agrafted Mn-Salen complexes10aOrdered mesoporous silica10aorganofunctionalized SBA-1510aoxidation catalysts10aOxyhalogenation of aromatics1 aSrinivas, Darbha1 aSaikia, Lakshi  uhttps://library.ncl.res.in/content/functionalized-sba-15-and-its-catalytic-applications-selective-organic-transformations-001304nas a2200241   4500008004100000022001400041245010700055210006900162260005700231300001200288490000800300520042400308653002800732653003000760653003300790653001100823653002700834100001900861700001500880700002100895700001800916856012800934       2010                        eng d  a1011-372X00aRegiospecific oxyhalogenation of aromatics over SBA-15-supported nanoparticle group IV-VI metal oxides0 aRegiospecific oxyhalogenation of aromatics over SBA15supported n  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcJUL  a190-2010 v1373 a<p>TiO(x), VO(x), MoO(x) and WO(x) supported on SBA-15 exhibit efficient catalytic activity for oxyhalogenation of aromatics with the H(2)O(2)-halide ion system. Unlike the hitherto known solid catalysts, these reusable catalysts yield the para-halogenated product with 100% selectivity at 298 K and moderate acidic pH (3-5). The catalytic activity was enhanced by five orders of magnitude when supported on SBA-15.</p>10aHaloperoxidase activity10aOrdered mesoporous silica10aOxyhalogenation of aromatics10aSBA-1510aSupported metal oxides1 aSaikia, Lakshi1 aRajesh, M.1 aSrinivas, Darbha1 aRatnasamy, P.  uhttps://library.ncl.res.in/content/regiospecific-oxyhalogenation-aromatics-over-sba-15-supported-nanoparticle-group-iv-vi-0