
%0 Journal Article
%A Galbraith, MN 
%A Horn, DHS 
%T Insect moulting hormones: Crustecdysone (20-hydroxyecdysone) from <I>Podocarpus elatus</I>
%J Australian Journal of Chemistry
%D 1969/05/01
%V 22
%N 5
%P 1045-1057
%K 
%R https://doi.org/10.1071/CH9691045
%U https://www.publish.csiro.au/paper/CH9691045 
%X The insect moulting hormone crustecdysone has been isolated from the Australian brown pine, Podocarpus elatus R.Br., and detected in a number of other Podocarpus species from various parts of the world. A series of acetates and acetonides of crustecdysone has been prepared, and the mass and nuclear magnetic resonance spectra of these compounds analysed. A simple micro method of measuring the rate of acetylation of hydroxy groups in steroids has been developed to determine the steric environment of these groups. 
