Abstract
An iterative method for the synthesis of C2–C4′ linked poly-oxazoles has been developed. This efficient two-step repetitive process includes TBS–iodine exchange reaction and Suzuki–Miyaura cross-coupling reaction with oxazolylboronate 8, which allows appending a bis-oxazole moiety per each iteration. The synthesis of bis-, tris-, tetrakis-, pentakis-, and hexakis-oxazoles ( 10, 14, 22, 18, and 24) was achieved starting from the common intermediate 7 in 1–5 steps.
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