01000nas a2200205   4500008004100000022001400041245006800055210006500123260010600188300001400294490000700308520026500315653002300580653001800603653001100621653001000632100002600642700002400668856010200692       2015                        eng d  a0040-403900aOxone-acetone mediated syn-dioxygenation of benzo-fused olefins0 aOxoneacetone mediated syndioxygenation of benzofused olefins  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcAPR  a2183-21860 v563 a<p>The oxone-acetone combination well established for olefin epoxidation has been demonstrated to be a practical reagent for the syn-dioxygenation (resulting in 1,3-dioxolanes) of indenes and dihydronaphthalenes. (C) 2015 Elsevier Ltd. All rights reserved.</p>10aDihydronaphthalene10aDioxygenation10aIndene10aOxone1 aPhatake, Ravindra, S.1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/oxone-acetone-mediated-syn-dioxygenation-benzo-fused-olefins-001320nas a2200205   4500008004100000022001400041245007200055210006900127260010600196300001400302490000700316520057000323653002300893653001100916653001000927653002100937100002600958700002400984856010601008       2015                        eng d  a0040-403900aOxone-acetone mediated wacker-type oxidation of benzo-fused olefins0 aOxoneacetone mediated wackertype oxidation of benzofused olefins  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUN  a3868-38710 v563 a<p>Herein we disclose a novel application of the oxone-acetone combination for the Wacker-type oxidation of indenes and dihydronaphthalenes leading, respectively, to indan-2-ones and 2-tetralones. The amount of the base employed in the reaction seems to switch the reaction path from dioxygenation to Wacker-type oxidation. Control experiments suggest that the reaction is not proceeding via the epoxide route and also that there is no role of trace amounts of metals present in the reagents on the current oxidation. (C) 2015 Elsevier Ltd. All rights reserved.</p>10aDihydronaphthalene10aIndene10aOxone10aWacker oxidation1 aPhatake, Ravindra, S.1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/oxone-acetone-mediated-wacker-type-oxidation-benzo-fused-olefins-001132nas a2200169   4500008004100000245007700041210007100118260000800189300001400197490000700211520051400218100002600732700003000758700003300788700002400821856011700845       2016                        eng d00aFluoride-mediated dephosphonylation of α-diazo-β-carbonyl phosphonates0 aFluoridemediated dephosphonylation of αdiazoβcarbonyl phosphonat  cDEC  a372 - 3750 v193 aThe possibility of fluoride-mediated selective dephosphonylation of α-diazo-β-carbonyl phosphonates such as the Ohira-Bestmann reagent has been proposed and executed. The resulting α-diazocarbonyl intermediates undergo a (3 + 2)-cycloaddition at room temperature with conjugated olefins and benzynes. Interestingly, under the current conditions, the resulting cycloaddition products underwent either N-acylation (with excess α-diazo-β-carbonyl phosphonates) or Michael addition (with conjugated olefins).1 aPhatake, Ravindra, S.1 aMullapudi, Venkanna, Babu1 aWakchaure, Vivek, Chandrakan1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/fluoride-mediated-dephosphonylation-%CE%B1-diazo-%CE%B2-carbonyl-phosphonates01061nas a2200169   4500008004100000022001400041245013500055210006900190260007100259300001400330490000700344520033800351100002600689700002000715700002400735856013200759       2016                        eng d  a1523-706000aIr(III)-catalyzed carbenoid functionalization of benzamides: synthesis of N-methoxyisoquinolinediones and N-methoxyisoquinolinones0 aIrIIIcatalyzed carbenoid functionalization of benzamides synthes  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUN  a2828-28310 v183 a<p>A mild and efficient Ir(III)-catalyzed C-H carbenoid functionalization strategy has been developed to access. N-methoxyisoquinolinediones and N-methoxyisoquinolinones. The reaction proceeds efficiently in high yield at room temperature over a broad range of substrates without requirement of any additional oxidants or a base.</p>1 aPhatake, Ravindra, S.1 aPatel, Pitambar1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/iriii-catalyzed-carbenoid-functionalization-benzamides-synthesis-n-methoxyisoquinolinediones01278nas a2200169   4500008004100000022001400041245010600055210006900161260007100230300001200301490000700313520059500320100002600915700002000941700002400961856012300985       2016                        eng d  a1523-706000aIr(III)-catalyzed synthesis of isoquinoline N-oxides from aryloxime and alpha-diazocarbonyl compounds0 aIrIIIcatalyzed synthesis of isoquinoline Noxides from aryloxime   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a292-2950 v183 a<p>An efficient Ir(III)-catalyzed C-H activation and annulations of aryloxime with a-diazocarbonyl compounds has been developed for the synthesis of substituted isoquinoline N-oxides. The reaction proceeds under mild atmospheric conditions, without any external oxidants and releases N-2 and H2O as the byproducts. In addition, synthetic applications of the N-oxide products have been established by performing further functionalization. An interesting dimeric iridacyclic complex allied through a bis-silver carboxylate bridge has been isolated that efficiently catalyzed the reaction.</p>1 aPhatake, Ravindra, S.1 aPatel, Pitambar1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/iriii-catalyzed-synthesis-isoquinoline-n-oxides-aryloxime-and-alpha-diazocarbonyl-001133nas a2200169   4500008004100000245008200041210006900123260000800192300001200200490000700212520052700219100002600746700002800772700002500800700002400825856011400849       2017                        eng d00aFluoride-mediated dephosphonylation of alpha-diazo-beta-carbonyl phosphonates0 aFluoridemediated dephosphonylation of alphadiazobetacarbonyl pho  cJAN  a372-3750 v193 aThe possibility of fluoride-mediated selective dephosphonylation of alpha-diazo-beta-carbonyl phosphonates such as the Ohira-Bestmann reagent has been proposed and executed. The resulting alpha-diazocarbonyl intermediates undergo a (3 + 2)pcycloaddition at room temperature with conjugated olefins and benzynes. Interestingly, under the current conditions, the resulting cycloaddition products underwent either N-acylation (with excess alpha-diazo-beta-carbonyl phosphonates) or Michael addition (with conjugated olefins).1 aPhatake, Ravindra, S.1 aMullapudi, Venkannababu1 aWakchaure, Vivek, C.1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/fluoride-mediated-dephosphonylation-alpha-diazo-beta-carbonyl-phosphonates