Phenyliodine(III) Diacetate/I 2 ‐Mediated Domino Approach for Pyrrolo[1,4]Thiazines and 1,4‐Thiazines by a One‐Pot Morin Rearrangement of N,S ‐ Acetals

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Danton, Fanny | Othman, Mohamed | Lawson, Ata Martin | Moncol, Ján | Ghinet, Alina | Rigo, Benoit | Daïch, Adam

Edité par HAL CCSD ; Wiley-VCH Verlag

International audience. An efficient domino transformation using a phenyliodine(III) diacetate (PIDA)/I2 combination towards Morin 1,4-thiazine compounds has been developed starting from N,S-acetals. The latter leads to "one-step" regioselective methylene insertion without the need for traditional sulfoxide intermediates in good yields. The reaction involves easily accessible N,S-acetals obtained from cost-effective basic ketones and cysteamine as starting materials. This process ultimately leads to 1,4-thiazines related to natural product and fused derivatives necessary for further QSAR study.

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