Aziridines
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Síntese e aplicação sintética de compostos orgânicos de selênio e telúrio / Synthesis and synthetic applications of selenides and tellurides organic compounds
Nesta tese foram desenvolvidas metodologias sintéticas para a abertura de N-tosilaziridinas, provenientes de aminoácidos, via arilcianocupratos de ordem superior, os quais foram gerados pela reação de troca telúrio/cobre entre teluretos arílicos e cianocupratos; tais aberturas levam à formação de estruturas análogas a fenetilaminas em bons rendimen
Publicado em: 2010
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2. Recentes avanços na preparação de aziridinas. Aplicações sintéticas e implicações mecanísticas
This article surveys a selection of the most recent advances in aziridine synthesis. Novel synthetic methods and new insights into existing methodologies for the selective construction of the title compounds reported in the past decade are discussed in terms of synthetic applicability and environmentally benign conditions. Mechanisms involving stereoselectiv
Química Nova. Publicado em: 2007-02
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3. Novos aspectos e aplicações da química de teluranas e de teluretos orgânicos / New aspects and applications of the chemistry of organotelluranes and organic tellurides
The first part of this thesis deals with the study of the reactivity of electrophilic tellurium compounds, mainly tellurium tetrachloride and aromatic tellurium trichlorides. New aspects of the reactivity of TeCl4 towards alkynes and some acetophenones were disclosed. A mechanistic rationale for each of the processes studied was possible by the determination
Publicado em: 2005
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4. Enantioselective synthesis of aziridines using asymmetric transfer hydrogenation as a precursor for chiral derivatives used as bonding agent for rocket solid propellants
A rapid, expedient and enantioselective method for the synthesis of beta-hydroxy amines and monosubstituted aziridines in up to 99% e.e., via asymmetric transfer hydrogenation of a-amino ketones and cyclisation through treatment with tosyl chloride and base, is described. (1R,2R)-N-(para-toluenesulfonyl)-1,2-ethylenediamine with formic acid has been utilised
Química Nova. Publicado em: 2002-11