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Stereochemistry of strictic acid and related furano-diterpenes from conyza japonica and grangea maderaspatana
Abstract Extraction of Conyza japonica gave strictic acid, ent-2β-hydroxy-15,16-epoxy-3,13(16),14-clerodatrien-18-oic acid and 5,7-dihydroxy-3,8,4′-trimethoxyflavone. Extraction of GrangeaExpand
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Separation and preconcentration of copper and cadmium ions from multielemental solutions using Nostoc muscorum-based biosorbents
Nostoc-based biosorbents (AlgaSORBs) useful as chromatographic column-packing materials were prepared by immobilizing cyanobacteria onto solid support in three different fashions: (i) cyanobacterialExpand
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Performance of System of Wheat Intensification (SWI) and conventional wheat sowing under North Eastern Plain Zone of India
A field experiment was conducted during the rabi seasons of 2011-12 and 2012-13 at Regional Station Indian Agricultural Research Institute, Pusa, Samastipur, Bihar. System of wheat intensificationExpand
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Desmids of Bareilly. I
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Interaction between Tb3+ and Er3+ ions in phosphate glass
Abstract Transfer of energy from optically excited Tb3+ to Er3+ in sodium phosphate glass has been observed. The transfer mechanism is found to be mainly electric dipole-dipole in nature. EnergyExpand
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Isoalantolactone derivatives and germacranolides from Blumea densiflora
Abstract The germacranolides tagitinin A and tirotundin ethyl ether and a series of new ring A-hydroxylated isoalantolactone derivatives were isolated from Blumea densiflora . Structures wereExpand
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Polyene cyclization : cyclization studies on an acyclic furanoditerpene and its epoxide
Abstract Reaction of an acyclic diterpene alcohol 1 c with chlorotrimethylsilane and sodium iodide or SnCl4 furnishes compounds 7 and 8 . This cyclization is reminiscent of the biosynthesis ofExpand
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