Reaction of 3- ha i ogeno-2h-1- benzopyra n -2-ones with 0rganometaiiic compounds. Synthesis of 4-alkyl-2h-1 -benzopyran-2-ones. x-ray molecular structure of 3- b romo-3,4-dihydro-4- isopropylcoumarin

1. Alberola, A.
2. Calvo, B.
3. Ortega, A.G.
4. Vicente, M.
5. Granda, S.G.
6. Van Der Maelen, J.F.