Cobalt(II)-catalyzed reaction between polycyclic aromatic aldehydes and acetic anhydride. Formation of acylals, not 1,2-diketones
作者:Albert J. Fry、Aloysius K. Rho、Laura R. Sherman、Carol S. Sherwin
DOI:10.1021/jo00010a021
日期:1991.5
Several polycyclic aromatic aldehydes were found to react with acetic anhydride in acetonitrile in the presence of excess CoCl2 to afford the corresponding acylals [ArCH(OAc)2]. The results are not consistent with the literature report (Ahmad, S.; Iqbal, J. J. Chem. Soc., Chem. Commun. 1987, 692) that substituted benzaldehydes afford 1,2-diketones under similar conditions. The cobalt(II) chloride probably promotes acylal formation through its weakly Lewis acid character.
FRY, ALBERT J.;RHO, ALOYSIUS K.;SHERMAN, LAURA R.;SHERWIN, CAROL S., J. ORG. CHEM., 56,(1991) N0, C. 3283-3286
作者:FRY, ALBERT J.、RHO, ALOYSIUS K.、SHERMAN, LAURA R.、SHERWIN, CAROL S.