Iminium ion catalysis: tools and observations

Brazier, John B. and Platts, Jamie A. and Tomkinson, Nicholas C. O. (2009) Iminium ion catalysis: tools and observations. In: UNSPECIFIED.

Full text not available in this repository.Request a copy

Abstract

In recent years the identification of new transformations and modes of reaction for iminium ion catalysis has attracted much interest, but the majority of reports have not looked at understanding the often complex processes taking place within the reaction flask. We have sought to understand these reactions and to test the validity of computational models. Iminium ion catalysts can be used to accelerate a variety of cycloaddn. and conjugate addn. processes. The accepted catalytic cycles do not help in explaining important observations, particularly regarding reaction medium. Through exptl. and theor. investigations we have focussed on three principle observations for the Diels-Alder cycloaddn.: - Water increases the rate of reactions. - Water increases the e.e. of the isolated products. - Theor. models for the conformations of the active species do not agree. We present evidence offering insights into the crucial roles of water within these transformations.

ORCID iDs

Brazier, John B., Platts, Jamie A. and Tomkinson, Nicholas C. O. ORCID logoORCID: https://orcid.org/0000-0002-5509-0133;
  • Item type:Conference or Workshop Item(Other)
    ID code:34165
    Dates:
    Date
    Event
    2009
    Published
    Notes:CAPLUS AN 2009:985209(Conference; Meeting Abstract; Computer Optical Disk)
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:11 Nov 2011 16:06
    Last modified:11 Nov 2024 16:31
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/34165
CORE (COnnecting REpositories)