ChemInform Abstract: Synthesis and Herbicidal Activity of 5‐Alkyl(aryl)‐3‐[(3‐trifluoromethyl)anilino]‐4, 5‐dihydro‐1H‐pyrazolo [4, 3‐d]pyrimidin‐4‐imines. Issue 47 (6th November 2014)