ChemInform Abstract: One‐Pot Synthesis of 4‐Substituted 3,4‐Dihydro‐3‐methoxyisocoumarins via Carboxylation of α‐Substituted 2‐Lithio‐β‐methoxystyrenes with Carbon Dioxide.

Abstract Carboxylation of α‐substituted 2‐lithio‐β‐methoxystyrenes followed by acid‐mediated lactonization opens a convenient route to the title compounds.