
TY  - JOUR
A1  - Bolte, ML 
A1  - Crow, WD 
A1  - Yoshida, S 
T1  - Plant growth regulators in Eucalyptus grandis. V. Synthesis of the G-regulators
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1982
VL  - 35
IS  - 7
SP  - 1421
EP  - 1429
KW  - 
UR  - https://doi.org/10.1071/CH9821421 
N2  - Problems associated with earlier synthetic approaches to the G-regulators have been overcome by the use of the Mannich reaction in aprotic media. Under these conditions the Mannich base formed from the reaction of 1,3-diketones and aldehydes is stabilized by internal hydrogen bonding and can be isolated in high yield. In aqueous acid rapid elimination occurs to give the 2-methylene 1,3-diketones, which first enolize then add oxygen to generate the G-regulator structure. The steric limitations of the reactions are examined. 
ER  -

