HZSM-5-zeolite as remarkable and reusable catalyst for the direct acetylation of alcohols and phenols under solvent-free conditions

859-860<span style="font-size:12.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-ansi-language:="" en-in;mso-fareast-language:en-in;mso-bidi-language:ar-sa"="" lang="EN-IN">HZSM-5 zeolite catalyze the acetylation or alcohols and phenols with acetic anhydride under solventless system. The catalyst can be recycled with no activity loss.