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Palladium-Catalyzed Template Directed C‑5 Selective Olefination of Thiazoles

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journal contribution
posted on 23.05.2019, 00:00 by Tapas Kumar Achar, Jyoti Prasad Biswas, Sandip Porey, Tapas Pal, Kankanala Ramakrishna, Siddhartha Maiti, Debabrata Maiti
An efficient method has been developed to afford highly C-5 selective olefination of thiazole derivatives utilizing a bifunctional template in an intermolecular fashion. Coordinative interaction between the substrates and the metal chelated template backbone plays a crucial role in high C-5 selectivity. Excellent selectivity for the C-5 position was observed while mono substituted (2- or 4-) or even more challenging unsubstituted thiazoles were employed.