27 research outputs found

    A Convergent Continuous Multistep Process for the Preparation of C<sub>4</sub>‑Oxime-Substituted Thiazoles

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    We report a strategy designed for the rapid and convergent assembly of C<sub>4</sub>-oxime substituted thiazoles. Our approach relied on 3-bromo-2-oxopropanal <i>O</i>-methyl oxime <b>7</b> as a key building block. A three-step sequence to <b>7</b> was designed, which, for safety concerns, could only be operated in batch mode on limited scales (â‰Ș100 g). We describe herein how we addressed such a limitation, by designing a multistep continuous synthesis of this intermediate and further demonstrate the advantages of flow reactor configuration upon scaling up
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