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Synthesis of some benzofuran and furocoumarin derivatives for possible biological activity.
Condensation of 5-formyl-6-methoxy-2,3-diphenylbenzofuran (I) and 6-formyl-5-methoxy-2,3-diphenylbenzofuran (II) with aliphatic or aromatic primary amines led to the formation of the correspondingExpand
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Effect of thermal treatment of rice husk ash on surface properties of hydrated portland cement-rice husk ash pastes
Portland cement was mixed with rice husk ash (RHA) fired at 450, 700 and 1000‡C, in ratios of 5, 15 and 25% of RHA by mass. Cement-RHA pastes were made by using a water/solid mixture ratio of 0.30 byExpand
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THE REACTION OF PHOSPHONIUM YLIDES WITH 1,2-BENZO[a]PHENAZINE-8,9-DIONE, NAPHTHO[2,1-b]FURAN-1,2-DIONE, BENZO[b]THIOPHENE-2,3-DIONE AND 1,2,3-INDANTRIONE
Abstract When 1,2-benzo[a]phenazine-8,9-dione (1), was reacted with two molar amounts of phosphonium ylides (5), the corresponding dialkyl 1,2-dihydrobenzo[a]furo[3,2,h]phenazine-1,2-dicarboxylatesExpand
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Effect of thermal treatment of rice husk ash on the surface properties of hydrated lime-rice husk ash binders
Rice husk ash fired at different temperatures, 450, 700 and 1000°C, was mixed with different concentrations of lime (molar lime/silica ash ratio of 0.2, 0.5 and 1.0). Each dry mixture was firstExpand
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REACTIONS WITH PHOSPHACUMULENES: SYNTHESIS OF PYRAN DERIVATIVES FROM THE REACTION OF N-PHENYLIMINOKETENYLIDENE TRIPHENYL-PHOSPHORANE WITH α,β-UNSATURATED CARBONYL COMPOUNDS
Abstract 2-Benzylidene-1,3-indanedione (2), 4-benzylidene-1,2-diphenyl-3,5-pyrazolidenedione (4) and/or 5-benzylidenebarbituric acid (6) can be converted by reaction with N-phenyliminoketenylideneExpand
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Effects of corticoadrenal extract on the neuronal and extraneuronal uptake of noradrenaline in the isolated rabbit heart
temperature characteristics of wheat ribosomes is being investigated thoroughly, e.g. the time-course for the heat adaptation of 'r ibosomal efficiency', the thermal stability of adapted andExpand