ListarQuímica por tema "ESPECTRÓMETRO"

Mostrando ítems 1-3 de 3

    • Constituents of Fevillea cordifolia: New Norcucurbitacin and Cucurbitacin Glycosides 

      Achenbach, Hans; Waibel, Reiner; Hefter Bübl, Ursula; Constenla Umaña, Manuel Arturo (1993)
      The seeds of Fevillea cordifolta have yielded 11 new fevicordin-type 29- norcucurbitacins 3-13, and two new cucurbitacin glycosides 14 and 15, which were isolated along with previous reported fevicordin A [2] and its ...

    • Derivados del 9,10-Dihidrofenantreno 

      Constenla Umaña, Manuel Arturo (1970)
      La siguiente tesis de licenciatura muestra un estudio de los productos sintéticos obtenidos por la condensación aldólica Schmidt - Claisen de la acetona con la fenantrenoquinona por medios espectroscópicos.

    • Flavonoid and other constituents of Bauhinia manca 

      Achenbach, Hans; Stöcker, Markus; Constenla Umaña, Manuel Arturo (1988)
      Phytochemical analysis of the stem of Bauhiniu munca yielded 63 compounds, among them six new natural products. Major constitutents were found to be 3-0-galloylepicatechin, gallic acid, cinnamic acid, /3-sitosterol and its ...