Rh(III)‐Catalyzed Aldehydic C−H Functionalization Reaction between Salicylaldehydes and Sulfoxonium Ylides.
- Resource Type
- Article
- Authors
- Xu, Guo‐Dong; Huang, Kenneth L.; Huang, Zhi‐Zhen
- Source
- Advanced Synthesis & Catalysis. 7/11/2019, Vol. 361 Issue 14, p3318-3323. 6p.
- Subject
- *YLIDES
*RHODIUM
*PALLADIUM
*CATALYSIS
- Language
- ISSN
- 1615-4150
A novel aldehydic C−H functionalization reaction between salicylaldehydes and sulfoxonium ylides has been developed under rhodium(III) catalysis, affording coupling products in moderate to good yields. A plausible mechanism involving aldehydic C(sp2)−H activation by rhodium(III) and rhodium(III) catalyzed carbene insertion is also proposed. It was also found that the aldehydic C−H functionalization followed by dehydrative cyclization was able to produce flavonoids in one‐pot. [ABSTRACT FROM AUTHOR]