反应详情

Next, the β-naphthol derivative having a halogen group (b3) is intramolecularly cyclized by formation of an ether bond according to a Williamson ether synthesis to form a benzo[b]naphtho[1,2-d]furan ring, so that a benzo[b]naphtho[1,2-d]furan compound (b4) can be obtained.

1. customto form a benzo[b]naphtho[1,2-d]furan ring