Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Mais filtros








Base de dados
Intervalo de ano de publicação
1.
Nucleic Acids Symp Ser ; (44): 225-6, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-12903350

RESUMO

In this study, we have investigated non-enzymatic oligomerization of an activated racemic mononucleotide in the presence of Na(+)-montmorillonite. Oligomers up to the decamer in length were formed by oligomerization reactions of activated D- and L-mononucleotides. Similarly, oligomerization of an activated racemic mononucleotide results in the formation of oligomers up to the octamer. These results suggest that montmorillonite catalysis is quite efficient for the oligomerization of racemic monomers, though it is somewhat less efficient than that of D- and L-monomers.


Assuntos
Monofosfato de Adenosina/análogos & derivados , Monofosfato de Adenosina/química , Oligorribonucleotídeos/síntese química , Bentonita , Catálise , Cromatografia Líquida de Alta Pressão , Oligorribonucleotídeos/química , Oligorribonucleotídeos/isolamento & purificação , Estereoisomerismo
2.
Yakugaku Zasshi ; 112(8): 585-91, 1992 Aug.
Artigo em Japonês | MEDLINE | ID: mdl-1432607

RESUMO

Several 1-alkoxy-2,3-dichloro-4-hydroxynaphthalene derivatives were prepared. These compounds were oxidized by hydrogen peroxide in the presence of a peroxidase to give 2,3-dichloro-1,4-naphthoquinone, which then reacted with various alkyl benzoylacetates to develop blue coloration with absorption maximum at greater than 600 nm. The color development reaction can be applied to the determination of appropriate serum constituents such as cholesterol.


Assuntos
Peróxido de Hidrogênio/análise , Naftóis/química , Cor , Espectroscopia de Ressonância Magnética , Naftoquinonas/química , Soluções , Espectrofotometria Infravermelho
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA