FACILE PREPARATION OF 2,6-DIMETHYL-2,6-TETRAHYDROPYRANCARBOLACTONE, A VERSATILE INTERMEDIATE FOR THE SYNTHESES OF (+/-)-FRONTALIN, (+/-)-CINENIC ACID, AND (+/-)-LINALOYL OXIDE
2,6-Dimethylcyclohexanone has been converted via its 2,6-dihydroxy derivative by base-catalyzed oxygenation to 2,6-dimethyl-2,6-tetrahydropyrancarbolactone which can be used as a key intermediate for the syntheses of the title natural products in racemic forms.
FACILE PREPARATION OF 2,6-DIMETHYL-2,6-TETRAHYDROPYRANCARBOLACTONE, A VERSATILE INTERMEDIATE FOR THE SYNTHESES OF (+/-)-FRONTALIN, (+/-)-CINENIC ACID, AND (+/-)-LINALOYL OXIDE