O. Hormi, C. Peltonen, Riitta Bergström
1991
Citations
0
Influential Citations
6
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
o-Methoxybenzylidenemalonates 1, which are available from o-methoxybenzaldehydes and diethyl malonate, were hydrolysed to the dipotassium malonates 2. Treatment of the salts 2 with trifluoroacetic acid–trifluoroacetic anhydride gave the title coumarins by a demethylative ring-closure reaction in 60–80% yield.