مرور Volume 20, Issue 6 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 6 از 6
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A Simple Approach to the Synthesis of 3-Substituted Rhodanines and Thiazolidine-2,4-diones
(Sharif University of Technology, 2013-12-01)A novel synthesis of 3-substituted rhodanine and thiazolidine-2,4-dione derivatives starting from aliphatic primary amines, carbon disulfide, and methyl 2-bromoacetate is described. The reaction proceeds successfully both ...
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Synthesis and Characterization of Biodegradable Multiblock Copolymers of L-Lactide, e-Caprolactone and Poly(ethylene glycol)
(Sharif University of Technology, 2013-12-01)Two multiblock copolymers of polyethylene glycol (PEG), L-lactide (LLA) and e-caprolactone (CL) were synthesized and characterized. Triblock prepolymers were first synthesized using PEG with molecular weight (Mn) of 15,000 ...
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Dimerization ofIsoquinolinium Ylide and 1,3-Dipolar Cycloaddition with Isoquinoline: Synthesis of Nitrogen-Containing Heterocyclic Compounds
(Sharif University of Technology, 2013-12-01)Dimerization and 1,3-dipolar cycloaddition reactions of isoquinolinium ylidewith isoquinolinehave been investigated to prepare diaza-dibenzo compounds in good to excellent yields and in a short reaction time. These reactions ...
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L-Proline as an efficient organocatalyst for the synthesis of quinoxaline derivatives under solvent-free conditions
(Sharif University of Technology, 2013-12-01)L-Proline has been found to be an efficient organocatalyst for one-pot synthesis of quinoxaline derivatives under solvent-free conditions. The method provided advantages such as short reaction time, high yields and simple work-up.
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Effects of viscoelastic polymer solutions on the oil extraction from dead ends
(Sharif University of Technology, 2013-12-01)This research deals with the numerical simulation of two viscoelastic fluids flow in an open capillary of a reservoir. The Oldroyd-B and Leonov models have been used to describe the rheological behavior of polymer solutions. ...
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Sol-gel preparation and characterisation of SnO2 powders employed as catalyst for phenol photodegradation
(Sharif University of Technology, 2013-12-01)Crystallized pure SnO2 powders were prepared by the sol-gel process and were used as photocatalyst for the degradation of phenol under UV light at pH 6.5 and a temperature of 20°C. The physical properties of photocatalyst ...
