Preparation and complete 1?H and 13C assignment of some pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione (PCUD) derivatives

The preparation of a number of alkyl and alkoxy derivatives of pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione derivatives utilising a cheap, practical, low energy, green, single-pass continuous flow photochemical reactor is reported. Their 1?H and 13C NMR spectra are fully assigned, revealing some general characteristics not previously reported for this class of compound, which should aid the assignment and prediction of the NMR spectra of PCUD derivatives. Copyright (c) 2012 John Wiley & Sons, Ltd.