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Showing 1 to 7 of 7 for “"Phosphorus pentoxide"”.
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Thermal Decompositions and Phase Identification in the Zirconium-Dioxide - Calcium-Oxide - Phosphorus-Pentoxide System
Made available in DSpace on 2014-12-10T17:32:35Z (GMT). No. of bitstreams: 1 6711826.pdf: 1975552 bytes, checksum: c3e207876f6fd8170e55f62d64e7dcdf (MD5) Previous issue date: 1967
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Reaction of Nucleophiles With Perfluoroalkyl, Perfluoroacyl and Perfluoroalkanesulfonyl Groups
… prepared in 82% yield by the dehydration (phosphorus pentoxide) of a 2:1 mixture of trifluoroacetic acid and trifluoromethanesulfonic (triflic) acid. Reactions of this highly electrophilic trifluoroacetylating reagent with alcohols, ketones, ethers, amines, pyridines, and with ionic and …
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Reactions of cellulose in liquid sulfur dioxide
… acid t a mixture of fuming nitric acid and phosphorus pentoxide, a mixture of fuming nitric acid, phosphorus pentox1de ana chlorine gas, or with nitrogen tetroxide. This is attributed to the fact that in each case the primary reaction ist hat of the formation of the compound N23209.
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Synthesis of novel cycloperoxides
… δ-peroxy-β-hydroxy ester, and subsequent phosphorus pentoxide-mediated cyclisation. Chapter 5 outlines our preparation of several novel 1,2-dioxolane carboxylic acids and various attempts at subsequently introducing an N-acyl sulfonamide to the 1,2-dioxolane core. Chapter 6 details the …
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Activated Phosphate Reagents for the Synthesis of Functionalized Oligophosphates
… to generate a trimetaphosphate based phosphorus ylide capable of P–C bond formation through Wittig chemistry. Ring opening of these substituted trimetaphosphate products with hydroxides results in linear triphosphate derivatives. Adenosine and uridine 5′-tetra- and 5′-pentaphosphates …
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TUBULE DENSITY, MOISTURE CONTENT AND MECHANICAL PROPERTIES OF DONKEY HOOF HORN
… One technique, namely desiccation over phosphorus pentoxide, was subsequently chosen to be the most appropriate method for dehydration of hoof horn for analyses of moisture content. The moisture content of donkey hoof horn of 33% was found to be significantly higher (p<O.O1) than the 26% …