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chemistry, multidisciplinary (17) 17
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Journal of Asian Earth Sciences, ISSN 1367-9120, 2010, Volume 39, Issue 4, pp. 236 - 253
The end Permian negative C excursion is well known but its cause and chronology are still in question. In an attempt to decipher the timing and reasons for... 
Iran | Permian–Triassic boundary | Conodonts | Carbon isotope stratigraphy | Oman | Permian-Triassic boundary | MASS-EXTINCTION | BIOTIC CRISIS | HAWASINA BASIN | ABADEH SECTION | GEOSCIENCES, MULTIDISCIPLINARY | CONTINENTAL-MARGIN | STRATOTYPE SECTION | MEISHAN SECTION | ORGANIC-CARBON | SOIL-EROSION | SOUTH CHINA
Journal Article
Journal of the Serbian Chemical Society, ISSN 0352-5139, 2015, Volume 80, Issue 4, pp. 459 - 464
Journal Article
Bulletin of the Chemical Society of Ethiopia, ISSN 1011-3924, 2017, Volume 31, Issue 2, pp. 345 - 350
The reactive intermediate generated by the addition of alkyl isocyanides to dialkyl acetylenedicarboxylates was trapped by N-formyl urea to produce highly... 
Three-component reaction | Dihydropyrimidinones | N-Formyl urea | Dialkyl acetylenedicarboxylate | Alkyl isocyanides | THIONES | MULTICOMPONENT REACTIONS | SOLVENT-FREE CONDITIONS | BIGINELLI REACTION | CHEMISTRY | CHEMISTRY, MULTIDISCIPLINARY | Urea | Pyrimidines | Usage | Chemical reactions | Chemical properties | Chemical synthesis | Observations | Methods | Production processes
Journal Article
Journal Article
Rivista Italiana di Paleontologia e Stratigrafia, ISSN 0035-6883, 03/2003, Volume 109, Issue 1, pp. 37 - 44
In the course of an investigation on the major mass extinction event near the P/T boundary, in the vicinity of Shahreza (South Isfahan) in Iran, a... 
Permian | Dzhulfian | Iran | Foraminifera | New species | Micropaleontology | Phylogeny | Wuchiapingian | new species | GEN | PALEONTOLOGY | foraminifera | EVOLUTION | GEOLOGY | micropaleontology | phylogery
Journal Article
Rivista Italiana di Paleontologia e Stratigrafia, ISSN 0035-6883, 03/2003, Volume 109, Issue 1
In the course of an investigation on the major mass extintion event near the P/T boundary, in the vicinity of Shahreza (South Isfahan) in Iran, a... 
Journal Article
Journal Article
Journal Article
Research Journal of Chemistry and Environment, ISSN 0972-0626, 08/2013, Volume 17, Issue 8, pp. 60 - 63
The 1:1 reactive intermediates generated by the addition of alkyl isocyanides to dialkyl acetylene dicarboxylates were trapped by 4-hydroxyquinazoline to yield... 
Ketenimines | Acetylenic esters | 1-Azadienes | 4-hydroxyquinazoline | Alkyl isocyanides | ACETYLENEDICARBOXYLATE | COMPLEXES | KETENE | MULTICOMPONENT REACTIONS | ENVIRONMENTAL SCIENCES | HETEROCYCLES | CHEMISTRY | 1-AZABUTA-1,3-DIENES | DERIVATIVES
Journal Article
Zeitschrift für Naturforschung B, ISSN 0932-0776, 07/2011, Volume 66, Issue 7, pp. 700 - 704
The reaction of dialkyl acetylenedicarboxylates with 4-hydroxyquinoline in the presence of triphenylphosphine (20 mol-%) produces dialkyl (Z)- and... 
Acetylenic Ester | C-Vinylation | 4-Hydroxyquinoline | Triphenylphosphine | 2-Methyl-4-hydroxyquinoline | 2-Methyl-4- hydroxyquinoline | CARBONATES | ALKYL | CHEMISTRY, ORGANIC | NUCLEOPHILIC-ADDITION | CHEMISTRY, INORGANIC & NUCLEAR | ALCOHOLS | PH3P | ESTERS | DERIVATIVES
Journal Article
Journal of Electroanalytical Chemistry, ISSN 1572-6657, 2000, Volume 484, Issue 2, pp. 120 - 130
Journal Article
ChemInform, ISSN 0931-7597, 01/2008, Volume 39, Issue 4, pp. no - no
ChemInform is a weekly ing Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform of an... 
pyridine derivatives | amination, N‐alkylation, N‐arylation
Journal Article
Asian Journal of Chemistry, ISSN 0970-7077, 2013, Volume 25, Issue 7, pp. 4111 - 4112
Reaction of the zwitter generated from pyridine and dialkylacetylene dicarboxylate with electron-deficient dialkylcarbodiimides lead to substituted... 
Synthesis | Electron-deficient | Zwitter ion | 2H-Quinolizine | INDOLIZINE | ADDITION-REACTIONS | ADDUCTS | PYRIDINES | CHEMISTRY, MULTIDISCIPLINARY | DIMETHYL ACETYLENEDICARBOXYLATE | HETEROCYCLIC-COMPOUNDS
Journal Article
Zeitschrift für Naturforschung B, ISSN 0932-0776, 2011, Volume 66, p. 700
Journal Article
Journal of the Mexican Chemical Society, ISSN 1870-249X, 07/2011, Volume 55, Issue 3, pp. 194 - 196
4-Hydroxypyridine undergoes a smooth reaction with dialkyl acetylenedicarboxylates in the presence of triphenylphosphine (15 mol %) to produce the E/Z isomers... 
Dialkyl 2-(4-oxopyridin-1(4h)-yl)but-2-enedioates | Triphenylphosphine | 4-hydroxypyridine | Dialkyl acetylenedicarboxylates | triphenylphosphine | dialkyl acetylenedicarboxylates | ALKYL | dialkyl 2-(4-oxopyridin-1(4H)-yl)but-2-enedioates | 4-Hydroxypyridine | TRIPLE BOND | NUCLEOPHILIC-ADDITION | CHEMISTRY, MULTIDISCIPLINARY
Journal Article
Canadian Journal of Chemistry, ISSN 0008-4042, 01/1997, Volume 75, Issue 1, pp. 92 - 97
Several compounds of the type PhCR 1 R 2 -TEMPO (where TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxide) have been prepared and examined as potential... 
ELECTRON-SPIN-RESONANCE | NITROXIDE | STATES | DIPHENYLMETHYL | MECHANISM | time resolved emission spectroscopy | laser flash photolysis | FLUORESCENCE | sensitizers | photoinitiator | KINETICS | CHEMISTRY | SYSTEMS | K DY CHEMISTRY | TEMPO | quenching | NARROW-POLYDISPERSITY RESINS | UNUSUAL SELECTIVITIES | Chemical reactions
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 1996, Volume 37, Issue 28, pp. 4919 - 4922
Two photochemical routes to stoichiometric initiators used in living free radical polymerizations are presented. These routes offer the advantages of higher... 
CHEMISTRY, ORGANIC | ABSOLUTE RATE CONSTANTS | BIRADICALS | FLASH-PHOTOLYSIS | KINETICS | CARBON-CENTERED RADICALS
Journal Article
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