Sulfonium Rearrangements Enable the Direct Preparation of Sulfenyl Imidinium Salts

• DOI: 10.1002/ange.202316579
• Publication Date: 2024-01-05T10:16:11Z
• Authors: Carlos R. Gonçalves; Immo Klose; Simone Placidi; Daniel Kaiser; Nuno Maulide
• Keywords: 104015 Organische Chemie; 104015 Organic chemistry; synthetic methods; rearrangements; sulfonolactones; Amides; 01 natural sciences; electrophilic activation; 0104 chemical sciences

AbstractSulfenyl imidinium salts are a virtually unexplored class of intermediates in organic chemistry. Herein, we demonstrate how sulfonium rearrangements can be deployed to access these versatile synthetic intermediates, bearing three contiguous (and congested) stereogenic centers, with high levels of selectivity. The synthetic value of the scaffold was unraveled by selective transformations into a range of building blocks, including 1,4‐dicarbonyl derivatives and sulfonolactones.