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Bianchini, R.* ; Chiappe, C.* ; Lenoir, D. ; Goldberg, N.*

Spectroscopic and theoretical investigations of electrophilic bromination reactions of alkynes : The first evidence for complexes as reaction intermediates.

Chem. Eur. J. 5, 1570-1580 (1999)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The first direct detection of a 1:1 Br2–alkyne complex as an intermediate during the addition of Br2 to alkynes is reported. The measured negative apparent activation energies for bromination of arylalkylacetylenes are only compatible with the formation of a reactive complex that precedes the rate-determining step. Quantum-chemical calculations suggest that the Br2 in the 1:1 complex functions as a donor for a second Br2 molecule as depicted here, giving a trimolecular complex structurally very similar to a stable Br2–Br2–alkene adduct reported some time ago.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
ISSN (print) / ISBN 0947-6539
e-ISSN 1521-3765
Zeitschrift Chemistry - A European Journal
Quellenangaben Band: 5, Heft: 5, Seiten: 1570-1580 Artikelnummer: , Supplement: ,
Verlag Wiley
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Ecological Chemistry (IOEC)