| abstract |
A process for production of a coumarin compound according to the present invention is characterized of reacting a salicylaldehyde derivative with an orthoacetate in the presence of a base, the process having features such as (1) using inexpensive raw materials, (2) not requiring high temperature reactions, (3) requiring few steps for the production, (4) achieving a high yield, and (5) being applicable to salicylaldehyde derivatives having various substituents, and thus is useful. |