Formose-Synthesis of Saccharides from Formaldehyde-
نویسندگان
چکیده
منابع مشابه
synthesis of sulfides from alcohols and thiols in solvent-freeconditions and deoxygenation of sulfoxides
کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
15 صفحه اولEasy synthesis of graphitic carbon nanocoils from saccharides
Graphitic carbon nanocoils with a high degree of crystallinity have been synthesized by using as intermediates hydrothermally carbonized samples (here denoted as hydrochar) obtained from three representative saccharides (glucose, sucrose and starch). The hydrochar samples were converted to graphitic nanocoils at moderate temperatures (900oC) using nickel nanoparticles as a graphitization cataly...
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condensation reaction of urea, casein and formaldehyde in the presence of varying proportion of resorcinol under alkaline condition. All the prepared resins were characterized by free-formaldehyde content, free-phenol content, viscosity measurements and infrared spectroscopy (IR). The resin samples were cured isothermally at 120oC using two different curing agents, p-toluene sulphonic acid (PTS...
متن کاملSynthesis of Humin-Phenol-Formaldehyde Adhesive
Humins are low-value-added byproducts from the biomass acid hydrolysis process. In the present work, humins were first employed as a phenol replacement for synthesis of modified phenol-formaldehyde adhesives through a two-step process. In this process, humins were first utilized to obtain alkaline soluble products, mainly consisting of phenolics, through a hydrothermal process. The obtained alk...
متن کاملSection Iii Release of Saccharides from Glycoconjugates
In many instances, it is useful to release a part or all of the oligosaccharide chains from a glycoconjugate before analyzing their structure, and the units presented in this section describe a variety of ways in which this can be achieved. Some of the methods described here (particularly the enzymatic ones) can also be applied to the study of free oligosaccharides or to oligosaccharides that a...
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ژورنال
عنوان ژورنال: Trends in Glycoscience and Glycotechnology
سال: 1990
ISSN: 0915-7352,1883-2113
DOI: 10.4052/tigg.2.119