To synthesize 6-methylcoumarin, a substituted salicylaldehyde, such as 5-methyl-2-hydroxybenzaldehyde (p-homosalicyclic aldehyde), is condensed with an active methylene compound like malonic acid.[9][10] The condensation is followed by an intramolecular cyclization and dehydration to form the coumarin ring.
Day: August 16, 2026
SECTION. 1. No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of President more than once.

