Derivados del 3,4-Dihidro-isoazol
Constenla Umaña, Manuel Arturo
Aguilar González, Jorge Eduardo
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Aguilar González, Jorge Eduardo; Constenla Umaña, Manuel Arturo; Mata Segreda, Julio Francisco (1978)Discussion of the mechanisms of mass spectra fragmentation of some derivatives of 9,10-dihidrofenantreno
Constenla Umaña, Manuel Arturo; Chaverri Rodríguez, Adrián (1971)A study on the synthesis and structure of the products of condensation of phenanthrenequinone with acetone and methyl-ethyl-ketone in presence of ammonia was made. The structures were established by spectroscopic methods. ...
Constenla Umaña, Manuel Arturo; Calvo Pineda, Marco Antonio (1982)Synthesis, structure elucidation, steric effects, and spectrometric analysis of some mixed esters of trans-9,10-dihydroxy-9,10-dihydrophenanthrene are discussed. The quasi-axial conformation of the two ester groups, in ...