Kinetics screening of the N-alkylation of organic superbases using a continuous flow microfluidic device: basicity versus nucleophilicity
2012
We describe here the determination of the alkylation rate of a set of organic superbases by iodomethane in DMF using a microfluidic continuous flow reactor. Surprisingly, log kAlkylation follows the inverse trend of pKBH+ of the base. Mayr's equation allows a more quantitative approach. From a synthetic point of view, TMGN and BEMP are demonstrated to be the best choices.
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