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Deuterierung von Azulen. II. Kinetik der Bildung von 1,3‐Dideuteroazulen in der Gasphase
Author(s) -
Van Tets A.,
Günthard Hs. H.
Publication year - 1961
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19610440312
Subject(s) - chemistry , azulene , reaction rate constant , kinetics , heavy water , molecule , chemical kinetics , medicinal chemistry , photochemistry , deuterium , organic chemistry , atomic physics , physics , quantum mechanics
The kinetics of exchange of protons in 1‐ and 3‐positions of the azulene molecule with heavy water in the gaseous phase at 140° C has been investigated. In the presence of large excess of heavy water the kinetics follows a simple two stage, first order reaction scheme, for which the rate constants have been measured. The hitherto unknown azulene‐d 1 isotope has been observed spectroscopically and shown to be involved in the reaction as an intermediate d o → d 1 → d 2 , with kinetically approximatively equivalent 1‐ and 3‐positions.