Assembly of Indeno[1,2-c]chromenes via a Palladium-Catalyzed Reaction of 1-Bromo-2-(cyclopropylidenemethyl)benzene with 2-Alkynylphenol

1-Bromo-2-(cyclopropylidenemethyl)benzenes react with 2-alkynylphenols under palladium catalysis, leading to indeno[1,2-c]chromenes in moderate to good yields. The molecular complexity and diversity can be introduced efficiently from easily available starting materials.