Chemistry of Heterocyclic Compounds p. 926 - 932 (1981)
Update date:2022-08-05
Topics:
Sharbatyan
Kost
Men'shikov
Yudin
Chernyshova
A series of α-carbolines were subjected to mass-spectrometric analysis. It is shown that these compounds are extremely stable with respect to electron impact. From 40 to 60% of the total ion current goes into the production of molecular ions during dissociative ionization. The mass spectra of these compounds are simple: the maximum peak corresponds to the molecular peak in the spectrum. The formation of the [M-1]+ ion and the detachment of a methyl group in monomethylcarbolines ([M-15]) are determined by the position of the methyl group. The mass-spectral fragmentation confirms the proposed scheme for the formation of α-carbolines from arylhydrazones and δ6-keto nitriles. A method for the synthesis of α-carbolines on the basis of accessible arylsulfamidoindoles is proposed.
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