
TY  - JOUR
A1  - Capon, RJ 
A1  - Ghisalberti, EL 
A1  - Jefferies, PR 
T1  - Synthesis of deuterated <I>ent</I>-beyeranes. Stereospecific reduction of a 4-axial aldehyde
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1982
VL  - 35
IS  - 3
SP  - 613
EP  - 620
KW  - 
UR  - https://doi.org/10.1071/CH9820613 
N2  - Reduction of the 4a-axial aldehyde group in ent-3,19-dioxobeyer-15-en-17-oic acid (1) by sodium borohydride is shown to occur by attack on the Si-face of the carbonyl group. The synthesis of some ent-beyerane derivatives stereospecifically labelled with deuterium at C19 is described. 
ER  -

