Synlett 2009(10): 1587-1590  
DOI: 10.1055/s-0029-1217338
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York

A Ring Rearrangement Approach to the Synthesis of Benzo[b]quinolizine and Benzoindolizine Architectures

Lauren R. Donaldsona, David Haighb, Alison N. Hulme*a
a School of Chemistry, The University of Edinburgh, Kings Buildings, West Mains Road, Edinburgh, EH9 3JJ, UK
e-Mail: Alison.Hulme@ed.ac.uk;
b GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
Further Information

Publication History

Received 23 March 2009
Publication Date:
02 June 2009 (online)

Abstract

An efficient ring rearrangement metathesis (RRM) approach to the synthesis of benzo[b]quinolizine and benzoindolizine systems from N-propargyl-phenanthridine derivatives is reported. A novel use of flash vacuum pyrolysis (FVP) for the Boc-deprotection of acid-sensitive substrates is also disclosed.