Abstract
The one-step formylations, using CH3OCHCl2/TiCl4 in CH2Cl2, of 9,9′-spirobifluorene to obtain 2-carboxaldehyde-9,9′-spirobifluorene and 2,2′-dicarboxaldehyde-9,9′-spirobifluorene in moderate to good yields are described. Previous works dealt with four-steps synthesis.
ACKNOWLEDGMENTS
The authors thank Murst (Italy) for financial support, project “Electrocatalysis and Electrosynthesis,” and Prof. L. Rampazzo for useful discussions.