01634nas a2200205   4500008004100000022001400041245020900055210006900264260007500333300001200408520071500420653002701135653002401162653001701186100002601203700002401229700002601253700001901279856013001298       2007                        eng d  a0936-521400aReactions of o-aminothiophenol and o-aminophenyl disulfide with itaconic anhydride and (-)-dimenthyl itaconate: access to enantiomerically pure 1,5-benzothiazepines and benzothiazolyl-2-methylacrylic acid0 aReactions of oaminothiophenol and oaminophenyl disulfide with it  aRUDIGERSTR 14, D-70469 STUTTGART, GERMANYbGEORG THIEME VERLAG KGcFEB  a457-4633 a<p>{A facile chemo- and regioselective reactions of o-aminothiophenol (o-ATP) with itaconic anhydride is described. 1,5-Benzothiazepinyl-3-acetic acid is obtained in 81% yield via the exclusive Michael type addition of the thiol unit from o-ATP to the carbon-carbon double bond in itaconic anhydride followed by an intramolecular anhydride ring opening with an amine unit. The moderately stereoselective Michael type addition of the thiol unit from o-ATP to (-)-dimenthyl itaconate to obtain a mixture of diastereomers in a 7:3 ratio in 82% yield has been demonstrated. The reductive sulfur-sulfur bond cleavage in the dicarboxylic acid, 2({2-[2-(3-carboxybut-3-enoylamino)phenyidisulfanyl]phenylcarbamoyl\</p>10aMagnetic nanoparticles10amagnetic properties10aspin glasses1 aBaag, Md., Merajuddin1 aSahoo, Manoj, Kumar1 aPuranik, Vedavati, G.1 aArgade, N., P.  uhttps://library.ncl.res.in/content/reactions-o-aminothiophenol-and-o-aminophenyl-disulfide-itaconic-anhydride-and-dimenthyl-001387nas a2200169   4500008004100000022001400041245018800055210006900243260011000312300001400422490000700436520057000443100002501013700002301038700002401061856013201085       2014                        eng d  a1477-052000aEasy access to alpha-aryl substituted gamma-ketophosphonates: lewis acid mediated reactions of 1,3-diketones with alpha-hydroxyphosphonates and tandem regioselective C-C bond cleavage0 aEasy access to alphaaryl substituted gammaketophosphonates lewis  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUL  a7140-71490 v123 a<p>A range of alpha-aryl substituted gamma-ketophosphonates is synthesised by Lewis acid mediated reactions of 1,3-diketones and easily accessible, inexpensive benzylic alpha-hydroxyphosphonates in an operationally simple method under solvent-free conditions without exclusion of air/moisture. A regioselective C-C bond cleavage for 1,3-diketones in a tandem fashion has also been demonstrated. Synthesis of a gamma-ketophosphonate with phenol functionality at the a-position (structural analogue of raspberry ketone, a natural product) has also been presented.</p>1 aPallikonda, Gangaram1 aChakravarty, Manab1 aSahoo, Manoj, Kumar  uhttps://library.ncl.res.in/content/easy-access-alpha-aryl-substituted-gamma-ketophosphonates-lewis-acid-mediated-reactions-13-001913nas a2200193   4500008004100000022001400041245011000055210006900165260009000234300002500324490000600349520110800355100002401463700002401487700003001511700002401541700002501565856012901590       2015                        eng d  a2041-172300aReversed reactivity of anilines with alkynes in the rhodium-catalysed C-H activation/carbonylation tandem0 aReversed reactivity of anilines with alkynes in the rhodiumcatal  aMACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLANDbNATURE PUBLISHING GROUPcOCT  aArticle Number: 85910 v63 a<p>Development of multicatalytic approach consisting of two or more mechanistically distinct catalytic steps using a single-site catalyst for rapid and straightforward access of structurally complex molecules under eco-benign conditions has significance in contemporary science. We have developed herein a rhodium-catalysed C-H activation strategy which uses an unprotected anilines and an electron-deficient alkynes to C-C bonded products as a potential intermediate in contrast to the archetypical C-N bonded products with high levels of regioselectivity. This is followed by carbonylation of C-H bond activated intermediate and subsequent annulation into quinolines has been described. This rhodium-catalysed auto-tandem reaction operates under mild, environmentally benign conditions using water as the solvent and CO surrogates as the carbonyl source with the concomitant generation of hydrogen gas. The strategy may facilitate the development of new synthetic protocols for the efficient and sustainable production of chemicals in an atom-economic way from simple, abundant starting materials.</p>1 aMidya, Siba, Prasad1 aSahoo, Manoj, Kumar1 aLandge, Vinod, Gokulkrish1 aRajamohanan, P., R.1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/reversed-reactivity-anilines-alkynes-rhodium-catalysed-c-h-activationcarbonylation-tandem00771nas a2200157   4500008004100000245005800041210005600099260000800155300001400163490000600177520026100183100003000444700002400474700002500498856009000523       2015                        eng d00aReverse-hydroformylation: a missing reaction explored0 aReversehydroformylation a missing reaction explored  cAUG  a1422-14240 v23 a<p>Recent progress in transition-metal catalysed acceptor- and acceptorless-reverse hydroformylation of aldehydes for the conversion of olefins has been discussed. The aldehyde feedstock serves as a source for production of syngas and valuable alkenes.</p>1 aNandakumar, Avanashiappan1 aSahoo, Manoj, Kumar1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/reverse-hydroformylation-missing-reaction-explored00940nas a2200181   4500008004100000245008000041210006900121260000800190300001600198490000700214520030700221100003000528700002400558700002400582700002000606700002500626856010700651       2015                        eng d00aWell-defined palladium(II) complexes for ligand enabled C(sp3)-alkynylation0 aWelldefined palladiumII complexes for ligand enabled Csp3alkynyl  cJUL  a15382-153860 v443 a<p>The first example of ligand-enabled C(sp3)-alkynylation of 8-methylquinoline is reported. The reaction is catalysed by well-defined Pd(II) complexes. The present C(sp3)-alkynylation has a broad substrate scope as well as functional group tolerance and proceeds efficiently under mild conditions.</p>1 aLandge, Vinod, Gokulkrish1 aSahoo, Manoj, Kumar1 aMidya, Siba, Prasad1 aJaiswal, Garima1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/well-defined-palladiumii-complexes-ligand-enabled-csp3-alkynylation01259nas a2200193   4500008004100000245015300041210006900194260000800263300001400271490000600285520048300291100003000774700002500804700002000829700002400849700002400873700002500897856014300922       2016                        eng d00aNickel-catalyzed direct alkynylation of C(sp2)-H bonds of amides: an “inverse sonogashira strategy” to ortho-alkynylbenzoic acids. just accepted0 aNickelcatalyzed direct alkynylation of Csp2H bonds of amides an   cOCT  a1946-19510 v63 a<p>Nickel-catalyzed direct alkynylation of C(sp2)–H bonds of amides using commercially available, inexpensive 8-aminoquinoline as a removable bidentate directing group is described. The present ortho-alkynylation has a broad substrate scope, functional group tolerance and high regiocontrol, and can be scaled up. The efficiency and selectivity of this strategy provide sustainable routes to a diverse array of ortho-alkynylbenzoic acids under Ni(II)-catalyzed conditions.</p>1 aLandge, Vinod, Gokulkrish1 aShewale, Chinmay, H.1 aJaiswal, Garima1 aSahoo, Manoj, Kumar1 aMidya, Siba, Prasad1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/nickel-catalyzed-direct-alkynylation-csp2-h-bonds-amides-%E2%80%9Cinverse-sonogashira-strategy%E2%80%9D