ISBN: 9783642097089 - synthesis of heterocycles via cycloadditions i: 12 (12 risultati)

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Taschenbuch. Condizione: Neu. Synthesis of Heterocycles via Cycloadditions I | Alfred Hassner | Taschenbuch | Topics in Heterocyclic Chemistry | xii | Englisch | 2010 | Springer | EAN 9783642097089 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - Heterocyclicmoleculesplayasigni cantroleinlifeprocessesandhaveplayed a major rolein industrial developments of the last century, for instance in the eld of dyes, pharmaceuticals, pesticides, polymers etc. They comprise not onlysomeofthemostinterestingandbiologicallyimportantnaturalproducts like alkaloids, carbohydrates, nucleic acids, and antibiotics but include many practical drugs and a large segment of known synthetic organic compounds. Hencescientistshavedevotedagreatamountofeffortto ndoptimalsynthetic approachesto a variety ofheterocyclic compounds. Amongthemostsuccessfulandselectivesyntheticprocessesarecycload- tionreactions,since theyinvolvesimultaneous orsequential formationoftwo ormorebondsoftenwithahighdegreeofstereoselectivityandregioselectivity. Forinstance, 1,3 dipolar cycloadditionsareelectronicallyequivalent to Diels Alder reactions and are among the most common 5-membered ring-forming systems. In addition they usually proceed with a high degree of stereo- and regio-control.It is therefore, not surprising that synthesis of many important classesofheterocycles,includingthoseofusefulbiologicallyactivemolecules, haveutilized cycloadditionsteps intheir formation.Furthermore,manyhe- rocyclesserve as intermediates in the synthesis of polyfunctional molecules. In this volume we present ve selected contributions by well-known - thors, each an authority in his eld. The rst chapter deals with construction ofisoxazolines(dihydroisoxazoles)via1,3-dipolarcycloadditionsofnitronates or of nitrile oxides generated from nitroalkanes. This includes inter- as well as intramolecular processes. Many of these heterocycles possess important synthetic and biological properties and are shown to lead to stereo- and - gioselectiveintroductionofmultifunctionalmoleculessuchasaminoalcohols, -amino acids, aldols, nitriles, and others.…

Condizione: New. pp. 244.

Condizione: New. In English.

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Condizione: new. Questo è un articolo print on demand.

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Heterocyclic chemistry is the biggest branch of chemistry covering two-third of the chemical literatureThe series covers hot topics of frontier research summarized by reputed scientists in the field Our review series is topic related.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Heterocyclicmoleculesplayasigni cantroleinlifeprocessesandhaveplayed a major rolein industrial developments of the last century, for instance in the eld of dyes, pharmaceuticals, pesticides, polymers etc. They comprise not onlysomeofthemostinterestingandbiologicallyimportantnaturalproducts like alkaloids, carbohydrates, nucleic acids, and antibiotics but include many practical drugs and a large segment of known synthetic organic compounds. Hencescientistshavedevotedagreatamountofeffortto ndoptimalsynthetic approachesto a variety ofheterocyclic compounds. Amongthemostsuccessfulandselectivesyntheticprocessesarecycload- tionreactions,since theyinvolvesimultaneous orsequential formationoftwo ormorebondsoftenwithahighdegreeofstereoselectivityandregioselectivity. Forinstance, 1,3 dipolar cycloadditionsareelectronicallyequivalent to Diels Alder reactions and are among the most common 5-membered ring-forming systems. In addition they usually proceed with a high degree of stereo- and regio-control.It is therefore, not surprising that synthesis of many important classesofheterocycles,includingthoseofusefulbiologicallyactivemolecules, haveutilized cycloadditionsteps intheir formation.Furthermore,manyhe- rocyclesserve as intermediates in the synthesis of polyfunctional molecules. In this volume we present ve selected contributions by well-known - thors, each an authority in his eld. The rst chapter deals with construction ofisoxazolines(dihydroisoxazoles)via1,3-dipolarcycloadditionsofnitronates or of nitrile oxides generated from nitroalkanes. This includes inter- as well as intramolecular processes. Many of these heterocycles possess important synthetic and biological properties and are shown to lead to stereo- and - gioselectiveintroductionofmultifunctionalmoleculessuchasaminoalcohols, -amino acids, aldols, nitriles, and others. 244 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -gioselectiveintroductionofmultifunctionalmoleculessuchasaminoalcohols, -amino acids, aldols, nitriles, and others.Springer-Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 244 pp. Englisch.

Condizione: New. Print on Demand pp. 244 283 Illus.

Condizione: New. PRINT ON DEMAND pp. 244.