نتایج جستجو برای: solid acid
تعداد نتایج: 921902 فیلتر نتایج به سال:
چکیده ندارد.
in this research, so3h-functionalizedphthalimide (sfp) has been prepared through simple reaction of phthalimide with chlorosulfonic acid, and characterized using ft-ir, 1h nmr, 13c nmr, sem (scanning electron microscopy), mass and tg (thermal gravimetric) spectra. afterward, the solid acid has been utilized as an efficient, green, heterogeneous and recyclable catalyst for the solvent-free synth...
The aim of this research was to investigate the effect of different concentrations of chitosan coating on the quality and shelf life of a local cultivar of banana. The factorial experiments of this research were conducted on a completely random basis and also replicated three times in a warehouse at 15˚C and in relative humidity of 85-90%. The treatments consisted of four chitosan concentration...
a simple extremely fast and efficient approach for the synthesis of substituted indazole ingood to excellent yield catalyzed by using silica sulfuric acid (ssa) in dmso solvent at roomtemperature. this is solid state reaction have been attracting the synthetic organic chemist asthey provided enhance reaction rates, less environmental pollution, greater selectivity, cleanerproducts and manipulat...
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