
TY  - JOUR
A1  - Lamberton, JA 
A1  - Morton, TC 
T1  - The Epoxy Lactone Ring of the Coumarin Micromelin: Formation of a New Epimer
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1985
VL  - 38
IS  - 7
SP  - 1025
EP  - 1030
KW  - 
UR  - https://doi.org/10.1071/CH9851025 
N2  - The five- membered epoxy lactone ring of micromelin opens very readily, without opening of the coumarin ring. Under strongly basic conditions the major product is the methoxy acid isolated by Talapatra et al. Under very mild conditions the five- membered ring may be opened and closed to give either micromelin or isomicromelin [ epimeric at the C4 ( benzylic ) position] according to the nature of the solvent. These studies of isomicromelin confirm the structure previously assigned to micromelin. 
ER  -

