نتایج جستجو برای: phenylhydrazones
تعداد نتایج: 56 فیلتر نتایج به سال:
The infrared absorption spectra of s ix 2-oxol ,3-bis(phe nylh ydrazon es), four tris(phenylhydrazones), and six related monoa nd bis-(phenylhydrazono) derivatives are prese nted_ ror compari son , partia l spec tra of te n selec ted aromatic azo co mpounds a re al so given a nd di scussed_ The important features of the absorption bands ari sing from the N = N (1579 to 1558 emI and 1447 to 1408...
The photochemical properties of two basic easily synthesized isatin N(2)-phenylhydrazones were investigated. Contrary to the corresponding isatin N(2)-diphenylhydrazones, only Z-isomers were isolated from the reaction mixtures during the synthesis due to their stabilization by intramolecular hydrogen bonding. Although the presence of the C=N double bond creates conditions for the formation of a...
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