ChemInform Abstract: Ethane‐1, 2‐diaminium Hydrogen Sulfate: Recyclable Organocatalyst for One‐Pot Synthesis of β‐Amino Ketones by a Three‐Component Mannich Reaction. Issue 43 (21st October 2014) - Bahrami, Kiumars; Khodaei, Mohammad Mehdi; Mohammadi, Masoumeh; Babajani, Nasrin