Medical Imaging Convention [rescheduled] Mar 09, 2021 - Mar 10, 2021 — National Exhibition Centre, Birmingham, England
9th SINAPSE Neuro-oncology Imaging Meeting [rescheduled] Mar 11, 2021 09:30 AM - 03:30 PM — West Park Conferencing & Events, 319 Perth Road, Dundee DD2 1NN
Total Body PET 2020 conference [rescheduled] Jun 05, 2021 - Jun 07, 2021 — McEwan Hall, University of Edinburgh

eLearning

SINAPSE experts from around Scotland have developed ten online modules designed to explain medical imaging. They are freely available and are intended for non-specialists.


Edinburgh Imaging Academy at the University of Edinburgh offers the following online programmes through a virtual learning environment:

Neuroimaging for Research MSc/Dip/Cert

Imaging MSc/Dip/Cert

PET-MR Principles & Applications Cert

Applied Medical Image Analysis Cert

Online Short Courses

Prins fluorination cyclisations: Preparation of 4-fluoro-pyran and -piperidine heterocycles

Author(s): G. G. Launay, A. M. Z. Slawin, D. O'Hagan

Abstract:
The Prins reaction was investigated using BF3 center dot OEt2 as a Lewis acid. It has been recently demonstrated, that if BF3 center dot OEt2 is used in stoichiometric amounts then these reactions generate fluorinated products where the BF3 center dot OEt2 contributes fluoride ion to quench the intermediate carbocations. In this study oxa- and aza-Prins reactions for the synthesis of 4-fluoro-pyrans and -piperidines were investigated. The products were obtained in good yields, but only with moderate diastereoselectivity. These Prins fluorination reactions can be accelerated under microwave conditions. The study extends the Prins fluorination methodology for the generation of the C-F bond in heterocycles.

Full version: Available here

Click the link to go to an external website with the full version of the paper


ISBN: 1860-5397
Publication Year: 2010
Periodical: Beilstein Journal of Organic Chemistry
Periodical Number:
Volume: 6
Pages:
Author Address: