作者:Sérgio M. A. Martins、Paula C. S. Branco、António M. D. R. L. Pereira
DOI:10.1590/s0103-50532012000400014
日期:——
Regioselective and highly efficient Heck arylation of 3-vinyl-6,7-dimethoxycoumarin has been developed to afford 3-styryl coumarins in good to very high yields. The increase in conjugation reflects on the absorbance of the synthesized compounds revealing all pronounced bathochromic shifts and hyperchromic effects.