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Synthesis basics

TheNef reaction of primary nitro compounds gives iildehydes or carboxylic acids, depending on the reaction conditions. Each transformation provides an important tool in organic synthesis. Primary nitro compotmds are converted into carboxylic acids vrith concentrated mineriil acids. Because such harsh conditions iilso lead to side reactions, a milder method is required inorganic synthesis. Basic phosphate-buffered KMnO rapidly converts primary nitroalkanes into carboxylic acids in 90-99% yield fEq. 6.13. "... [Pg.162]

Synthesis Basically, two methods are available, which both start (evidently) from suitable monomers (1) chemical synthesis, followed by doping, and (2) electrochemical synthesis directly in a doped state. [Pg.457]

In 1973, the group led by Prof. Adinolfi synthetized the antibiotic LL-Z1271a (63) [81] starting from ketolactone 139, obtained, in turn, by degradation of the diterpene marrubiin (9% overall yield). This synthesis basically consists of the formation of the 5-lactone C ring by nucleophilic addition to carbonyl group and subsequent lactonization (Scheme 11).. [Pg.495]

Chemical synthesis is not a science that can be taught or learned by any well-defined set of rules. Some classify synthesis as more art than science because, as with all really creative endeavors, to be very successful requires great imagination conditioned by a wealth of background knowledge and experience. The problems of synthesis basically are problems in design and... [Pg.513]

Figure 8.52 Template-assisted chemical synthesis basic principles. Figure 8.52 Template-assisted chemical synthesis basic principles.
As solid-phase synthesis basically involves only three types of operations (addition of excess of reagent shaking the beads in the reagent cocktail filtration and washing) machines have been designed to perform solid-phase synthesis automatically (8). Automated oligonucleotide and oligopeptide synthesis has become routine. [Pg.1715]

Teulade, M.-P., Savignac, P., Aboujaoude, E.E., and Collignon, N., a-Lithiated phosphonate carbanions. Synthesis, basicity and stability to self-condensation, J. Organomet. Chem., 312, 283, 1986. [Pg.145]

Organic synthesis (basic principles) 98MI1, 01MI31. [Pg.11]


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See also in sourсe #XX -- [ Pg.51 ]




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