http://nopr.niscair.res.in/handle/123456789/5052 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/5211 Title: A copper sulphate catalysed synthesis of derivatives of tetra substituted pyridine <br/> <br/>Authors: Kidwai, Mazaahir; Priya <br/> <br/>Abstract: Copper sulphate has been found to be an effective catalyst in water-ethanol solvent system for the synthesis of various tetra-substituted pyridine derivatives <i style="">via</i> Michael addition of <img src='/image/spc_char/beta.gif'>-dicarbonyl compounds to <i style=""><img src='/image/spc_char/alpha.gif'> </i>,<i style=""><img src='/image/spc_char/beta.gif'></i>-unsaturated oximes and subsequent ring closure. A rapid synthesis of heterocycles by this methodology is ecofriendly in nature in addition to remarkably improved yield and reduced reaction times. <br/> <br/>Page(s): 1045-1048 Sun, 28 Jun 2009 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/5210 Title: New coumarin diol from the plant, <i>Chloroxylon swietenia</i> DC <br/> <br/>Authors: Rao, G Venkateswara; Rao, K Sambasiva; Annamalai, T; Mukhopadhyay, T <br/> <br/>Abstract: <smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="metricconverter"> A new coumarin diol has been isolated along with three known coumarin compounds, 6,8-diprenylumbelliferone, bergapten and isopimpinellin from the chloroform fraction of the leaves of the plant,<b> </b><i>Chloroxylon swietenia</i> DC<b>. </b>The structure of new compound has been established as 6-(2′,3′-dihydroxy-3-methylbutyl)-8-prenylumbelliferone based on the spectral (UV, IR, ¹H, ¹³C and 2D NMR and mass) data. </smarttagtype> <br/> <br/>Page(s): 1041-1044 Sun, 28 Jun 2009 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/5209 Title: Isolation and characterization of novel esters from aerial parts of <i>Tiliacora acuminata</i> <br/> <br/>Authors: Selvaraj, S Joseph; Alphonse, I; Britto, S John <br/> <br/>Abstract: Two novel esters octyl(benzoylamino)acetate and heptadeca-4-ene-acetate have been isolated from the aerial parts of both male and female plants of <i style="">Tiliacora acuminata</i>. The structures are confirmed by spectroscopic and analytical methods. <br/> <br/>Page(s): 1038-1040 Sun, 28 Jun 2009 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/5208 Title: Synthesis and evaluation of some new substituted phenylthiazole derivatives and their antitubercular activity <br/> <br/>Authors: Pattan, Shashikant R; Bukitagar, Anand A; Pattan, Jayashri S; Kapadnis, B P; Jadhav, S G <br/> <br/>Abstract: A new series of substituted phenylthiazole derivatives have been synthesized and the structures of these compounds have been established on the basis of spectral and elemental analysis. All compounds<b> </b>have been screened for antitubercular activity by Middle brook 7H9 agar medium against H₃₇Rv. strain. Most of these compounds have shown promising antitubercular activity. <br/> <br/>Page(s): 1033-1037 Sun, 28 Jun 2009 22:58:59 GMT