Chiral Phosphine—Olefin Bidentate Ligands in Asymmetric Catalysis: Rhodium-Catalyzed Asymmetric 1,4-Addition of Aryl Boronic Acids to Maleimides.
✍ Scribed by Ryo Shintani; Wei-Liang Duan; Takashi Nagano; Atsushi Okada; Tamio Hayashi
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 36 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
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📜 SIMILAR VOLUMES
## Abstract A new family of benzene‐based chiral heterodisulfoxide ligands **L1**–**L5** was synthesized in a single step. These disulfoxide ligands were applied in the rhodium‐catalyzed asymmetric 1,4‐addition of arylboronic acids to chromenones. The addition of diverse arylboronic acids to chrome
## Abstract An efficient rhodium complex catalyst system was developed by using a class of simple __tert__‐butanesulfinylphosphines as bidentate ligands, which solely bear sulfur chirality and combine the advantages of both sulfoxide and phosphine ligands. Excellent activities (in 0.5 hour, up to 9