K. Karnakar, S. Narayana Murthy, K. Ramesh, K. Harsha Vardhan Reddy, Y. V. D. Nageswar, U. Chandrakala, B. L. A. Prabhavathi Devi and R. B. N. Prasad, “A Novel One-Pot Synthesis of Spiro[indoline-3,4’-pyrazolo[3,4-e] [1,4]thiazepine]diones Using Recyclable Bioglycerol-Based Sulfonic Acid Functionalized Carbon Catalyst,” Tetrahedron Letters, Vol. 53, No. 27, 2012, pp. 3497- 3501. doi:10.1016/j.tetlet.2012.04.122

has been cited by the following article:

• TITLE: Glycerol-Based Carbon-SO3H Catalyzed Benign Synthetic Protocol for the Acetylation of Alcohols, Phenols and Amines under Solvent-Free Conditions

  AUTHORS: Katakam N. Gangadhar, Manneganti Vijay, Rachapudi Badari Narayana Prasad, Bhetala Lakshmi Anu Prabhavathi Devi

  KEYWORDS: Acetylation; Glycerol-Based Carbon-SO3H Catalyst; Solvent-Free Method; Alcohols; Phenols; Amines

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.3 No.2, May 28, 2013

  ABSTRACT: A simple and efficient solvent-free method was developed for the acetylation of alcohols, phenols and amines in excellent yields employing glycerol-based sulfonic acid (-SO3H) functionalized carbon catalyst under environmentally benign reaction conditions. The salient features of this protocol are the short reaction time, ease of product isolation and reusability of the carbon catalyst.