The use of solid-supported reagents for the multi-step synthesis of analytically pure α,β-unsaturated compounds in miniaturized flow reactors

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Abstract
Micro reaction technology offers a safe, controllable and information rich technique suitable for the long-term production of pharmaceutical agents and fine chemicals. To date however, few of the syntheses performed using this technology have addressed the problems associated with product purification. With this in mind, we report herein the incorporation of multiple supported reagents into EOF-based miniaturized flow reactors for the two-step synthesis of analytically pure compounds. Using this approach, the successful synthesis of 20 α,β-unsaturated compounds in excellent yields (>99.1%) and purities (>99.9%) has been achieved, illustrating significant improvements compared to traditional batch techniques.