Enantioselective Ullmann ether couplings: syntheses of (-)-myricatomentogenin, (-)-jugcathanin, (+)-galeon, and (+)-pterocarine.

The first enantioselective Ullmann cross-coupling reactions to prepare diaryl ethers are reported. The reactions were used to prepare the diarylether heptanoid natural products (-)-myricatomentogenin, (-)-jugcathanin, (+)-galeon, and (+)-pterocarine.