Functionalization at C-5 and at the C-6 methyl group of 4-methoxy-6-methyl-2-pyrone |
| |
Authors: | R Bacardit M Moreno-Maas R Pleixats |
| |
Institution: | R. Bacardit,M. Moreno-Mañas,R. Pleixats |
| |
Abstract: | A new entry to C-5 substituted 4-hydroxy-6-methyl-2-pyrones has been achieved. The best conditions to prepare the monobromo and the dibromo derivatives at C-3 and the C-6 methyl group of the title pyrone have been defined. The synthetic applicability of the phosphonium salts at CH3-C-6 of both 4-methoxy-6-methyl-2-pyrone, 5 , and dehydroacetic acid, 2 , has also been evaluated. |
| |
Keywords: | |
|
|