Mostrando 1 - 20 Resultados de 1,923 Para Buscar '"Ritter"', tiempo de consulta: 0.20s Limitar resultados
  1. 1
    por Samarow, Gregor, 1829-1903
    Publicado 1880
    Libro
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    “…To circumvent this issue, acetonitrile, possessing a low HalA, was used as the nucleophile in the catalytic asymmetric Ritter-type chloroamidation of allyl-amides. This method is compatible with Z and E alkenes with both alkyl and aromatic substitution. …”
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    “…BACKGROUND: Silverfish are known as one of the major pests which feed on paper and starch-based materials and can cause serious problems in museums, libraries and archives. Ctenolepismacalvum (Ritter, 1910) was first recorded from Ceylon (now Sri Lanka) and has also been known from Central American countries including Guyana and Cuba. …”
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    “…ABSTRACT: Ctenolepisma calvum (Ritter, 1910) (Zygentoma: Lepismatidae) is a primitive wingless insect that causes damage to paper, and it is regarded as a pest of collections in museums, archives, and libraries. …”
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    “…The Ritter reaction, Brønsted- or Lewis acid-mediated amidation of alkene or alcohol with nitrile via a carbocation, represents a classical method for the synthesis of tertiary amides. …”
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    “…In this regard, we have developed a Ritter-type alkene functionalization utilizing a PhI(OAc)(2) ((diacetoxyiodo)benzene, PIDA)/Lewis acid combination in order to access isoxazoline and pyrazoline cores. …”
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    “…By merging electricity with sulfate, the Ritter-type amination of C(sp(3))-H bonds is developed in an undivided cell under room temperature. …”
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    por Muñoz Carpena, Rafael
    Publicado 2005
    Libro
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