Organocatalysis is a form of catalysis where small organic molecules referred to as an “organocatalyst” composed of carbon, hydrogen, sulfur are used to accelerate a chemical reaction. Organocatalyst have several advantages which include their insensitivity to moisture and oxygen, low cost, non-toxicity. These reactions are coming as powerful tools for the construction of complex molecular skeletons. Metal based catalysis is not required in Organocatalysis; instead simple organic molecules are used to increase the rate of a reaction. For example, the modification of cellulose in water on multi-ton scale is done with the help of simple organic acids which are used as catalysts in this reactio