he "C chemical shifts of 17 indnzole derivatives are discossed as a function of snbstituent effects and the N-1-H or N-2-H structure of indnzole. The presence in solution of the N-1-H tautomer is confirmed.
La photolyse des N‐acé'tyl et N,N ‐diacétyl benzimidazolones en solution dans le benzéne ou l'alcool 95 conduit à des mélanges de produits de désacétylation, d'ortho‐transposition et de para‐transposition. Les différents produits obtenus ont été identifiés par rmn, spectrométrie de masse et synthése univoque.
Photolyse der Pyrazole (I) bzw. (III) in Gegenwart von KCN als Nucleophil in Methanol/Piperylen führt zu den Substitutionsprodukten (II) und (IV), wobei neben (IV) auch das Reduktionsprodukt (V) erhalten wird.
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