Kinetics for Scale-Up of a One-Pot Pathway to 5-(3-Fluorophenyl)-2,4-dihydro-2,4-dimethyl-3H-1,2,4-triazole-3-thione Using a Hybrid Model of Parallel and Consecutive Reactions
Abstract:Kinetic results are reported for the one-pot reaction of 2,4dimethylthiosemicarbazide (1) and 3-fluorobenzoyl chloride (2) to the unisolated benzamide intermediate (3), and on to the ringclosed product, 5-(3-fluorophenyl)-2,4-dihydro-2,4-dimethyl-3H-1,2,4-triazole-3-thione (4). The sensitivity of the synthetic route to competing side reactions was examined by studying the kinetics of each reaction step. A first-order kinetic Model of the hybrid consecutive and parallel reaction scheme was developed and fit to … Show more
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