AlCl3DMA reagent in the regioselective solvent free Friedel-Crafts acylation reaction of benzodioxin derivatives
作者:Alejandra G. Suárez
DOI:10.1016/s0040-4039(99)00514-6
日期:1999.4
A general method for the regioselective solvent free Friedel-Crafts acylation of 2-substituted-1,4-benzodioxin derivatives in excellent yields employing the AlCl3-DMA reagent with acyl halides or anhydrides as acylating agents is described. The acylation of 2-substituted-1,4-benzodioxin derivatives provides the 6-acyl compound as the major product. However, the saturated analogs affords the 7-acyl regioisomer as the main compound, (C) 1999 Elsevier Science Ltd. All rights reserved.