In:
Angewandte Chemie, Wiley, Vol. 127, No. 23 ( 2015-06), p. 6991-6996
Abstract:
Rate and equilibrium constants for the reaction between N‐aryl triazolium N‐heterocyclic carbene (NHC) precatalysts and substituted benzaldehyde derivatives to form 3‐(hydroxybenzyl)azolium adducts under both catalytic and stoichiometric conditions have been measured. Kinetic analysis and reaction profile fitting of both the forward and reverse reactions, plus onwards reaction to the Breslow intermediate, demonstrate the remarkable effect of the benzaldehyde 2‐substituent in these reactions and provide insight into the chemoselectivity of cross‐benzoin reactions.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v127.23
DOI:
10.1002/ange.201501840
Language:
German
Publisher:
Wiley
Publication Date:
2015
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505872-7
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1479266-7
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