In the synthesis of fluorinated active pharmaceutical ingredients (APIs), the deprotection of silyl ethers using tetrabutylammonium fluoride (TBAF) is a cornerstone transformation. However, translating this reaction from batch to continuous-flow processing introduces unique challenges that demand rigorous reactor optimization. As a process chemist or R&D director, you are not merely scaling a reaction; you are engineering a robust, reproducible process that must meet stringent purity and yield targets. This article dissects the critical parameters—residence time, heat dissipation, impurity management, and drop-in reagent performance—that govern successful TBAF deprotection in continuous-flow systems. Drawing on hands-on field experience, we address non-standard behaviors that can derail scale-up and provide actionable solutions to ensure your process runs seamlessly.
