A short and efficient enantio- and diastereoselective synthesis of different representatives
from the class of dihydro-α-pyrone natural products, including both enantiomers of
goniothalamin, massoia lactone, parasorbic acid, and some derivatives is presented.
It is based on the application of enantiopure α-chiral allylboronic esters in allyl
additions.
Key words
natural products - goniothalamin - allyl addition - boronic ester - dihydro-α-pyrones