H NMR conformational analysis of acylated glycerolyl flavazoles

الملخص EN

The conformation of l-aryl-3-(D-erythro-1, 2, 3-triacetoxypropyl)-6, 7-dimethyl-flavazoles and their L-threo analogs have been examined by 1H NMR spectroscopy.

The favored conformation can be deduced from the spin-spin coupling data.

The most popular conformation of the D-erythro analogs is the extended zigzag conformations, whereas the sickle conformation of the L-threo analogs is the most popular one.

However, a bent conformation is the most popular for the benzoyloxy analogs of the D-erythro isomers.