%0 Journal Article %T Polyvinyl alcohol immobilized N-ethyl sulfamic acid (PVA-NHSO3H) as an efficient catalyst for rapid and selective acetylation of phenols, alcohols, amines and thiols under solvent free conditions %A Razavi Fard, Mehri %A Akhlaghinia, Batool %A , %J Journal of the Indian Chemical Society %@ 0019-4522 %D 2015