Improved Synthesis of Parent Fused 7-Oxanorbornenes

Alexey Gromov; Valentin Enev; Johann Mulzer

Synthetic Communications, 40, 1, 2010, 104 - 110

The synthesis of parent fused 7-oxanorbornenes 1 and 2 based on double Diels–Alder reaction of methyl propiolate with furan followed by saponification and reductive Barton decarboxylation is described.